C&F (Cost and Freight)
C4 Plant
Cabinet of the United States
Cable
Cable Routing Schedule
Cable Schedule
Cable Tile
Cable Tray Penetration Detail
Cable Trench Detail
Cable Trench Layout
CAD (Computer-Aided Design)
CAD/CAM (Computer-Aided Design/Computer-Aided Manufacturing)
Cadence
Cadmium (Cd)
Cadmium Telluride (CdTe) Solar Cell
Caesium or Cesium (Cs)
Caffeine
CAFM (Computer-Aided Facility Management)
Cage
Calandria
Calcareous Coating or Calcareous Deposit
Calcium (Ca)
Calcium Carbonate (CaCO3)
Calcium Dihydrogen Phosphate
Calculate
Calculation
Calendar
Calendar Adjustment
Calibrate
Californium (Cf)
Call Back
Call Money
Calling Party Pays (CPP)
Calorie (cal)
Calorific Value (CV)
Calorimeter
CAM (Computer-Aided Manufacturing)
Camp
Canal
Cancer
Candela
Candidate
Candle Power
Canned Motor Pump
Cannibalisation
CAPA (Corrective Action and Preventive Action)
Capability
Capability Assessment
Capability Margin
Capacitance (C)
Capacitive Deionization (CDI)
Capacitor
Capacity
Capacity Assessment
Capacity Charge (or Demand Charge)
Capacity Development
Capacity Factor
Capacity Factored Estimate (Class 5)
Capacity Trading
CAPEX (Capital Expenditure)
Capillary Action
Capillary Number
Capital
Capital Account
Capital Asset Pricing Model (CAPM)
Capital Budgeting
Capital Cost
Capital Injection
Capital Levy
Capital Reserve
Capital Spare
Capital Transfer
Capitalisation
Capitalisation of Interest
Capitalised Production
Capitulation
Captive Electrolyte Battery
Captive Refinery Oxygenate Plant
Capture
Car Seal
Caravan
Carbamate (NH2COOH)
Carbamide (CO(NH2)2)
Carbon (C)
Carbon Black
Carbon Border Tax
Carbon Capture and Storage (CCS)
Carbon Capture, Utilisation and Storage (CCUS)
Carbon Credit
Carbon Dioxide (CO2)
Carbon Dioxide (CO2) Equivalent (CO2e)
Carbon Dioxide Removal (CDR, or Carbon Removal)
Carbon Footprint
Carbon Mono Oxide (CO)
Carbon Negativity
Carbon Neutrality
Carbon Steel
Carbon Trading
Carbon Zinc Cell Battery
Carbonaceous
Carbonate
Carbonyl (C=O)
Carboxyl Group (-COOH)
Carburizing
Carcinogen
Career
Cargo
Cargo Retention Clauses (CRT)
Cargo Ship
Carnet or ATA Carnet
Carnot Cycle
Carriageway
Carry
Carry Forward
Carry Over
Cartel
Cascade Impactor
Cascading Style Sheets (CSS)
Case
CASE (Computer Aided Software Engineering)
Case Conference
Case Hardening
Casein Paint
Cash
Cash and Carry
Cash Cost
Cash Flow
Cash Flow Forecasting
Cash Flow Management
Cash in Advance
Cash on Delivery (COD)
Cash Transfer
Casing Valve
Cast Iron
Casting
Casual
Casual Worker
Catalogue
Catalysis
Catalyst
Catalyst Activity (z)
Catalyst and Chemicals Summary
Catalyst Coke
Catalytic Converter
Catalytic Cracking
Catalytic Hydrocracking
Catalytic Hydrotreating
Catalytic Reforming
Catastrophe
Catastrophic Failure
Catastrophic Incident
Catastrophic Loss
Catch Basin
Catch Tank
Category
Category D Fluid Service
Category M Fluid Service
Cathode
Cathodic
Cathodic Corrosion
Cathodic Disbondment
Cathodic Inhibitor
Cathodic Polarization
Cathodic Protection
Catholyte
Cation
Caulking Compound
Causal Factor (CF)
Cause
Cause and Effect (C&E) Diagram
Cause Consequence Analysis (or Cause Consequence Diagrams)
Cause of Loss
Causes of Death
Caustic
Caustic Cracking
Caustic Embrittlement
Caustic Environment
Caveat
Cavitation
Cavitation Corrosion
Cavitation Damage
Cavitation Erosion
Cavity Wall Insulation
CBE (Commercial Bid Evaluation)
CBI (Condition Based Inspection)
CBOT (Chicago Board of Trade)
CBS (Cost Breakdown Structure)
CCC (Care, Custody, and Control)
CCO (Chief Customer Officer)
CCPS (Centre for Chemical Process Safety)
CD (Certificate of Deposit)
CDC (Centres for Disease Control and Prevention)
CDO (Chief Diversity Officer)
Ceiling
Celebrate
Cell
Cell Barrier
Cell Junction
Cell Membrane
Cell Nucleus
Cell Receptor
Cellulose
Cellulose Insulation
Celsiu (°C)
Cement
Cementation
Cementite (Fe3C)
Census
Centigrade
Central Bank
Central Bank Digital Currency (CBDC)
Central Government
Central Heating System
Central Power Plant
Central Receiver
Central Receiver Solar Power Plant
Central Tendency
Centralisation (Centralization)
Centraliser (Centralizer)
Centrifugal Compressor
Centrifugal Pump
Centrifuge
Ceramic
Cerium (Ce)
Certain
Certificate
Certificate of Compliance (COC)
Certificate of Insurance
Certificate of Origin
Certification
Certification System
CES (Consumer Electronics Show)
Cetane
Cetane Number (CN)
cf (Cubic Feet), Mcf
CFC (Chlorofluorocarbon)
CGIAR (formerly the Consultative Group for International Agricultural Research)
CGPM (General Conference on Weights and Measures)
CGS (Centimetre, Gram and Second) Unit
Chain
Chain (Length)
Chain Index
Chain Linking
Chain of Title
Chain Price Index
Chain Reaction
Chalcogen
Chalking
Challenge
Chamber
Champion
Change
Change Control
Change in Scope
Change Management
Change Management Procedure
Change Order (CO)
Change Work
Chaos
Char
Character
Characteristic
Characteristicity
Charcoal
Charge
Charge Capacity
Charge Carrier
Charge Controller
Charge Density
Charge Factor
Charge Neutralizer
Charge Rate
Charge Relaxation
Chargeable Weight
Charity
Charles's Law
Charter
Chasm
Chatbot
ChatGPT
Check
Check Estimate
Check Valve
Checking
Checking Rule
Checklist Analysis
Checklist or Check Sheet
Checksum
Chelate
Chemical
Chemical Activity Barometer (CAB)
Chemical Change
Chemical Conversion Coating
Chemical Element
Chemical Energy
Chemical Engineering
Chemical Equation
Chemical Equilibrium
Chemical Explosion
Chemical Formula
Chemical Industry
Chemical Isolation
Chemical Kinetics
Chemical Plant
Chemical Potential Energy
Chemical Process
Chemical Process Industry
Chemical Process Quantitative Risk Analysis (CPQRA)
Chemical Process Quantitative Risk Assessment (CPQRA or QRA)
Chemical Property
Chemical Reaction
Chemical Reactivity
Chemical Reactivity Hazard
Chemical Structure
Chemical Symbol
Chemical Treatment (of hazardous waste)
Chemical Vapor Deposition (CVD)
Chemistry
CHEMTREC (Chemical Transportation Emergency Center)
Chevron Pattern
Chiller
Chimney
Chimney Effect
Chipping
Chiral Centre
Chirality (or Chiral)
Chloramine
Chlorate (ClO3-)
Chloride (Cl-)
Chlorinated Hydrocarbon
Chlorine (Cl)
Chlorine Dioxide (ClO2)
Chlorite (ClO-)
Chloroform (CHCl3)
Chlorophyll
Chlorpyrifos
Choice of Law
Choke
Choke Valve
Cholelithiasis
Cholera
Cholesterol
Chopper Pump
Chord
CHP (Combined Heat and Power Plant)
Christmas Day
Christmas Eve
Christmas Tree
Chromatography
Chromium (Cr)
Chromosome
Chronic
Chronic Dehydration
Chronic Disease
Chronic Effect
Chronic Hazard
Chronic Health Condition
Chronology
Churning
Chuseok (or Hangawi as a Korean Thanksgiving)
CID (Capital Investment Decision)
CIF (Cost, Insurance, and Freight)
CII (Construction Industry Institute)
CIM (The Chartered Institute of Marketing)
CIPM (International Committee for Weights and Measures)
CIPS (Chartered Institute of Procurement and Supply)
Circuit
Circuit Breaker
Circuit Breaker Setting
Circuit Lag
Circularity
Circulate
Circulating Fluidized Bed
Circulation Pump
Circulation System
Circulatory System
Circumstance
Circumvent
Circumvention
Cis Isomer
Citizen
Citizenship
City Gas (or Town Gas)
Civil
Civil Contingencies Act (CCA)
Civil Design Criteria
Civil Case
Civil Engineering
Civil Layout
Civil Register
Claim
Claimant
Clarification
Clarifier
Clarify
Clash
Class
Classification
Clathrate
Clause
Clawback
Clay
Clean Air Act (CAA)
Clean Development Mechanism (CDM)
Clean Energy
Clean Hands Doctrine
Clean on Board
Clean Power Generator
Clean Power Plan
Clean Production
Clean Technology
Clean Water Act (CWA)
Cleaning
Cleanroom
Cleavage Fracture
Clickthru Agreement
Client
Client Assessment for the proposal
Client Confidentiality
Client Furnished Material
Client Relationship (Customer Relationship)
Client Relationship Management (CRM or Customer Relationship Management)
Client Satisfaction
Client Satisfaction Survey
Climate
Climate Change
Climate Change, Agriculture and Food Security (CCAFS)
Climate Prediction (or Climate Forecast)
Climate Prediction Center's (CPC)
Climate System
Clinical Trial
Clog
Clone
Closed Cycle
Closed Ecological System
Closed Loop Control System
Closed Loop Geothermal Heat Pump System
Closed Network
Closed System
Cloud
Cloud Computing
Cloud Point
CLSCC (Chloride Stress Corrosion Cracking)
Cluster
Cluster Analysis
cm (Cubic Metre, M3), Mcm, Bcm
CME (Chicago Mercantile Exchange)
CMMS (Computerised Maintenance Management Systems)
CNC (Computer Numerical Control)
CNG (Compressed Natural Gas)
Coagulation
Coagulation and Flocculation
Coal
Coal Bed Methane (CBM)
Coal Deposit
Coal Gas
Coal Mine Methane (CMM)
Coal Seam Gas
Coal Tar
Coalesce
Coalification
Coarsen
Coat
Coating
Coating System
Cobalt (Co)
COBOL (Common Business Oriented Language)
Cobweb Theory (or Cobweb Model)
Cocaine
COD (chemical oxygen demand)
Code
Codex
Codex Alimentarius
Coding
Coefficient
Coefficient of Heat Transmission (U-Value)
Coefficient of Performance (COP)
Coenzyme
COF (Consequence of Failure)
Co-financing
Co-firing
COG (Centre of Gravity)
Cogeneration
Cogenerator
Cognitive
Cognitive Computing
Coherence
Coherent
Cohesion
Cohort
Cohort Study
COI (Confirmation of Intent)
Coil
Coincidence Factor
Coincident Demand
Coke
Coke Oven Gas
Coker
Coking Coal
Cold Chain
Cold Cracking
Cold Heavy Oil Production with Sand (CHOPS)
Cold Insulation
Cold Lap
Cold Shut
Cold Working
Collaborate
Collaborative Economy
Collagen
Collateralised Debt Obligation (CDO)
Collect
Collective Agreement
Collector
Collector Fluid
Colligative Properties
Collimator
Collision
Colloid
Collusion
Colorectal
Colour (Color)
Colour Rendition
Colour Rendition (Rendering) Index (CRI)
Colour Temperature
Column
Comanagement (Co-Management)
Combination
Combination Reaction
Combine
Combined Charging System (CCS)
Combined Collector
Combined Cooling, Heat and Power (CCHP)
Combined Cycle Gas Turbine (CCGT)
Combined Cycle Power Plant (CCPP)
Combined Gas Law
Combined Heat and Power Fuel Cell (CHPFC)
Combustible
Combustible Concentration
Combustible Dust
Combustible Liquid
Combustible Particulate Solid
Combustion
Combustion Air
Combustion Chamber
Combustion Gas
Combustion Power Plant
Combustion Turbine
COMEX
Comfort Letter
Commemorate
Comment
Commercial
Commercial Baseline
Commercial Blast Cleaned Surface
Commercial Building
Commercial Confidentiality
Commercial Credit
Commercial Device
Commercial Paper (CP)
Commercial Power
Commercial Risk
Commercial Sector
Commission
Commissioning
Commissioning Authority
Commissioning Completion Certification
Commissioning Plan
Commissioning Process
Commissioning Process Activity
Commissioning Process Progress Report
Commissioning Report
Commissioning Sequence
Commissioning Team
Commit
Commitment
Committee
Commoditisation (or Commoditization)
Commodity
Commodity Data
Commodity Material
Common
Common Carrier
Common Cause Failure (CCF)
Common Cause of Variation
Common Gateway Interface (CGI)
Common Law
Common Market
Common Offset
Common Sense
Common-ion Effect
Commonwealth
Commonwealth of Independent States (CIS)
Communication
Communication and Coordination Management
Communist
Communitization
Community
Compact
Compaction
Companion
Company
Company Capability Assessment
Company Confidential Information
Company Seal
Comparability
Compare
Compartment
Compatibility
Compensate
Competence
Competency
Competent
Competent Authority
Competition
Competitive Service
Competitor Assessment for the proposal
Complaint
Complete
Complete Market
Complete Mix Digester
Completeness
Completion
Completion Process
Completion Report
Complex Ion
Complexity
Compliance
Compliance Criterion
Component
Compose
Composite Indicator
Composition
Compound
Compound Annual Growth Rate (CAGR)
Comprehensive
Comprehensive Economic Trade Agreement (CETA)
Comprehensive Nuclear-Test-Ban Treaty (CTBT)
Compress
Compressed Air Storage
Compressibility
Compressible
Compression Chiller
Compressive Strength
Compressor
Compressor Station (or Gas Booster Station)
Comprise
Compromise
Compulsory
Computation
Computer
Computer Engineering
Computer Science
Computer Software
Conceal
Concentrated
Concentrated PV (CPV)
Concentrated Solar Power (CSP)
Concentrating (Solar) Collector
Concentration
Concentration Cell
Concentration Polarization
Concentrator
Concentric
Concept
Conceptual Design
Concession
Concise
Conclusion
Concorde Effect
Concrete
Concrete Pump
Concurrent Sentence
Condensate
Condensation
Condensation Induced Water Hammer
Condensation Reaction
Condenser
Condenser Coil
Condensing Boiler
Condensing Furnace
Condensing Unit
Condition
Condition Monitoring (CM)
Conditional Bond
Conditional Discharge
Conditional Exclusion
Conditional Probability
Conditional Sentence
Conditioning Effect
Conduct
Conduct of Operations (COO)
Conductance
Conduction
Conductive
Conductive Coating
Conductive Concrete
Conductivity
Conductor
Conduit
Conference
Confidence Interval
Confidence Level
Confidential
Confidential Agreement (or Confidentiality Agreement)
Confidential Data
Confidentiality
Confidentiality Disclosure Agreement
Configuration
Configuration Management
Configure
Confined Explosion
Confinement
Confirm
Confirmed Letter of Credit (L/C)
Conflict
Conflict of Interest (COI)
Conflict Rule
Conform
Conformer
Conformity
Confrontation
Congener
Congestion
Conglomerate
Conjoint
Conjoint Analysis Approach
Conjugate
Conjunctivitis
Connate Water
Connect
Connected Load
Connossement
Conscious
Conscious Parallelism
Consecutive Sentence
Consensus
Consensus ad idem
Consent
Consequence
Consequence Analysis
Consequence Based Approach
Consequence Modelling
Conservation
Conservation of Energy
Conservation of Mass
Conservation Vent Valve
Consideration
Consign
Consignee
Consignment
Consignor
Consist in
Consist of
Consistency
Consistency in Aggregation
Consistent
Consolidate
Consolidated Amount
Consolidation
Consortium
Consortium Bank
Conspiracy
Constant
Constant Price
Constant-Speed Wind Turbine
Constituent
Constitute
Constitutional Monarchy
Constraint
Constructability
Construction
Construction All Risk (CAR) Insurance
Construction Allowance
Construction Boxscore Database
Construction Checklist
Construction Completion Management Tool
Construction Contractor
Construction Cost
Construction Detailed Schedule (Level 4)
Construction Document
Construction Engineering
Construction Equipment
Construction Foreman
Construction Indicator
Construction Labour
Construction Management
Construction Manager
Construction Material
Construction Organisation (Site Organization)
Construction Price Index
Construction Progress
Construction Sequence
Construction Team Mobilisation
Construction Work Completed
Construction Work Package (CWP)
Construction, Design and Management Regulations (CDM)
Consult
Consultant
Consumable Material
Consume
Consumer
Consumer Durable
Consumer Goods
Consumers' Surplus
Consumption
Contact
Contact Resistance
Contagion
Contagious Disease
Contain
Container
Containment
Containment Strategy
Contaminant
Contamination
Content
Contest
Contestable Market
Context
Contingency
Contingency Drawdown
Contingency Fund or Reserve
Contingency Plan
Contingency Reserve
Contingent Liability
Contingent Valuation
Continual Improvement
Continuity
Continuity Bond
Continuous
Continuous Anode
Continuous Commissioning Process
Continuous Quality Improvement (CQI)
Continuous Reactor
Continuous Stirred Tank Reactor (CSTR)
Contour
Contour Map
Contract
Contract Award
Contract Basis for the Baseline (Contract Summary)
Contract Budget Base (CBB)
Contract Development and Manufacturing Organisation (CDMO)
Contract Document
Contract for Difference (CFD)
Contract Management
Contract Price
Contract Scope of Work (SOW)
Contract Type
Contraction
Contractor
Contractor Management
Contrast
Contravention
Contribute
Contributing Cause
Contribution
Control
Control Base
Control Budget
Control Budget Estimate (Class 2)
Control Chart
Control Drawing
Control Level Schedule (Level 3 Schedule)
Control Logic Diagram
Control Objectives for Information and Related Technology (COBIT)
Control of Industrial Major Accident Hazards Regulations (CIMAH)
Control of Major Accident Hazards (COMAH)
Control Rod
Control Room
Control Room and Control Building Layout
Control System
Control System Engineering
Control Valve
Controlled Document
Controlled Variable
Convection
Convention
Conventional Gasoline
Conventional Heat Pump
Conventional Oil
Conventional Power
Conventional Reservoirs
Conventional Rounding
Converge
Conversation
Conversion
Conversion Efficiency
Conversion Factor
Converter
Convertible Bond
Convexity
Conveyance
Conveyance Loss
Conviction
COO/CD (Conduct of Operations and Operational Discipline)
Cookie
Cool
Cool Flame Ignition
Coolant
Cooling
Cooling Capacity
Cooling Load
Cooling Water
Cooling Water System
Cooperation
Cooperative (Co-operative)
Coordinate
Coordinate Bond
Coordination
Coordination Compound
Coordination Drawing (or Composite Drawing)
COP24
Copernicium (Cn)
Co-polymer (Co-polymer)
Copper (Cu)
Copper Indium Gallium Selenide (CIS/CIGS) Solar Cell
COPQ (Cost of Poor Quality)
Coproduct
Copy
Copyright
Coram
Core
Core Commodity
Core Competence
Core Value
Corner Post
Corona Discharge
Corporate
Corporate Cost
Corporate Entity
Corporate Governance
Corporate Trustee
Corporation
Corps
Correction
Corrective Action
Corrective Maintenance
Correlation
Correlation Coefficient
Correspondent Bank
Corrosion
Corrosion Coupon
Corrosion Fatigue
Corrosion Inhibitor
Corrosion Potential
Corrosion Rate
Corrosion Resistance
Corrosion Risk Assessment
Corrosive
Corrosive Environment
Corrosiveness
Corrosivity
Corrupt
Corruption
Cosmetic
Cosmic Radiation
Cosmos
Cosolvent
Cost
Cost Avoidance
Cost Based Pricing Technique
Cost Benefit Analysis
Cost Billed
Cost Centre (Cost Center)
Cost Control and Management
Cost Engineer
Cost Estimate
Cost Estimate Classification
Cost Estimator
Cost Gas
Cost Index (or Price Index)
Cost of Cash
Cost of Crude Oil
Cost of Living Index
Cost of Service (RCS)
Cost Performance Index (CPI)
Cost Plus Award Fee (CPAF) Contract
Cost Plus Fee Contract
Cost Plus Fixed Fee (CPFF) Contract
Cost plus Fixed Fee (CPFF) with sharing Savings
Cost Plus Incentive Fee (CPIF) Contract
Cost Plus Percentage of Cost Contract
Cost Plus with Guaranteed Maximum Price (GMP) and Incentive Contract
Cost Plus with Guaranteed Maximum Price (GMP) Contract
Cost Variation (CV)
Costs
Coulomb (C)
Coulomb's Law
Counsel
Counterfeit
Counterflow Heat Exchanger
Countermeasure
Counterpart
Counterparty
Counterpoise
Countervail
Country
Country of Origin (COO)
Country of Origin Labelling (CoOL)
Couple
Coupling
Coupon
Course
Court
Covalent Bond
Covalent Compound
Covalent Radius
Covenant
Cover
COVID-19 (Coronavirus Disease 2019)
CPI (Characters per Inch)
CPI (Consumer Price Index)
CPI (Corrugated Plate Interceptor)
CPM (Critical Path Method)
CPU (Central Processing Unit)
Crack
Cracking
Craft
Craftsman
Crashing
Crawl Space
Crazing
Creaming
Create
Creation
Creative Accounting
Credit
Credit Default Swap (CDS)
Credit Derivative
Credit Guarantee
Credit Insurance
Credit Risk
Creditor
Creep
Creep Strength
Crenation
Crest
Crevice Corrosion
Crew
Criteria
Criterion
Critical
Critical Activity
Critical Alarm
Critical Capital
Critical Compression Pressure
Critical Effect
Critical Equipment
Critical Humidity
Critical Infrastructure
Critical Load
Critical Raw Materials Alliance (CRMA)
Critical Operating Parameter
Critical Path
Critical Pitting Potential
Critical Point
Critical Pressure
Critical Process Measurement
Critical Protection Circuit
Critical Protection Device
Critical Protection Instrumentation
Critical Temperature
Criticality
Criticality Study
CRO (Contract Research Organization)
Cross Section
Cross Subsidization
Cross Trade
Crowd
Crowd Economy
Crowdfunding
Crowdsourcing
Crude
Crude Distillation Unit (CDU)
Crude Oil Production
Crude Oil Quality
Cruise
Crust
Cryogenic Liquid
Cryogenic Pump
Cryogenics
Cryosphere
Cryptocurrency
Cryptography or Cryptology
Crystal (Crystalline)
Crystalline Silicon (c-Si)
Crystallization (Crystallization)
Crystallise (Crystallize)
CSA (Civil, Structural and Architectural)
CSI (Control System and Instrumentation)
CSR (Corporate Social Responsibility)
CSST (Critical Steady State Temperature)
CSTR (Continuous flow Stirred Tank Reactor)
CTD (Cumulative Trauma Disorder)
Cubic
Cubic Feet per Second (CFS)
Cubic Foot (of Natural Gas)
Cultivate
Cultural Diversity
Culture
Cure
Curie (Ci)
Curing
Curing Agent
Curing Time
Curium (Cm)
Currency
Currency Adjustment Factor (CAF)
Currency and Deposit
Currency Fluctuation
Currency linked Bonds or Notes
Currency of Transaction
Currency Surcharge
Current (I)
Current Account
Current Density (J)
Current Dollars (or Constant Dollars)
Current Efficiency
Current Forecast
Current Price
Current Transfer
Current Value
Current Withstand Rating
Custom
Customer (or Consumer)
Customer Contact Centre (CCC)
Customer Satisfaction
Customs Clearance
Customs Duty
Cut
Cut off (or Cutoff)
Cut off Threshold
Cut off Voltage
Cutter Stock
Cutting Waste
CV (Curriculum Vitae)
CVID (Complete, Verifiable and Irreversible Dismantlement)
Cyber
Cyber Attack (or Cyberattack)
Cyber Monday
Cyber Money
Cycle
Cycle Time
Cyclic Compound (or Ring Compound)
Cyclic Steam Stimulation (CSS)
Cycloalkane
Cyclone
Cyclone Burner
Cylinder
Cyst
Cytokine