Wafer

Wage

Wage and Labour Cost

Wage Rate

Waiver

Wall

Wall Orientation

Walsh Price Index

War risk

Warehouse

Warehouse Management

Warehouse Management System (WMS)

Warrant

Warrants

Warranty

Wash Primer

Waste

Waste Management

Waste Water

Waste Water Treatment Unit (WWTU)

Watchdog

Water

Water Compatible

Water Cleaning

Water Conservation

Water Cycle

Water Gas

Water Gauge

Water Hammer (or Hydraulic Shock)

Water Hardness

Water Incompatible

Water Jacket

Water Jetting

Water Management

Water Paint

Water Percent Solid

Water Purification

Water Quality

Water Reactive

Water Resources

Water Softening

Water Source Heat Pump

Water Stopper

Water Stress

Water Treatment

Water Turbine

Water Vapor Transmission Rate (WVT)

Water Wall

Water Wheel

Waterborne 

Watershed

Watt (W)

Watthour (Wh)

Wattmeter

Wave

Wave Function

Wave Length

Wave Number

Wave Energy (or Wave Power)

Waveform

Wavelength (or Wave Length)

Wavelet

Wax

Way

WBS (Work Breakdown Structure)

WCO (World Customs Organisation)

Weak

Weak Acid

Weakness

Wear and Tear

Wearable Robot

Wealth Effect

Weather

Weathering

Weatherization

Weatherstripping

Web Browser

Web3

Weber (Wb)

Website

Weight

Weight by Volume

Weight Value (or Weight Factor)

Weld

Weld Metal

Welder

Welding

Welding Electrode Classification

Welding Neck Flange

Welding Rod

Weldment

Well

Well Being

Well Flowline Layout

Well Interference

Well Pump

Wellhead

Wellhead Backpressure

WERA (Working Ergonomic Risk Assessment)

Wet Film Gauge

Wet Film Thickness

Wet Gas

Wet Weight

Wettability

Wharf

What-if Analysis

Wheeling

White Hydrogen

White Metal

Whiterust

WHO (World Health Organization)

Whole Core

Wholesale Prices Index

WHRU (Waste Heat Recovery Unit)

Wide Area Network (WAN)

Width

WiFi (Wireless Fidelity or Wi-Fi)

Wind Energy (or Wind Power)

Wind Energy Conversion System (WECS) or Device

Wind Farm

Wind Generator

Wind Girder

Wind Power

Wind Power Plant

Wind Power Profile

Wind Resource Assessment

Wind Speed (or Wind Velocity)

Wind Speed Frequency Curve

Wind Turbine

Wind Turbine Rated Capacity

Windfall Tax

Windmill

Window

Window Dressing

Window Schedule

Wing Valve

Winning Strategy

Windward

Winsorisation

Winterisation

WIPO (World Intellectual Property Organisation)

Wire

Wireless

Wireless Energy Transfer (WET) or Wireless Power Transfer (WPT)

Wireless Network

Withdraw

Without Prejudice

Witness

WMO (World Meteorological Organization)

Wobbe Index (or Wobbe Number)

Word

Work

Work Experience

Work Function

Work Instruction

Work out

Work Package (WP)

Work Permit

Work Process

Worker

Workforce (or Work Force)

Workforce Involvement

Working Capital (WC)

Working Day/ Hour

Working Electrode

Working Storage Capacity

Workload

Workload Analysis

Workplace

Workplace Environmental Exposure Levels (WEELs)

Workshop

World

World Bank

World Class Manufacturing

World Energy Council (WEC)

World Nuclear Association (WNA)

World Water Day

World Wide Fund for Nature (WWF)

World Wide Web (WWW)

Worthwhile

Wound Rotor Motor

Worst Case

Worst Case Consequence

Worst Case Scenario (WCS)

Worst Possible Incident

WoV (Window of Vulnerability)

WPC (World Petroleum Council)

Wrench (or Spanner)

Wrench Fault

Wrinkling

Writ

Write-off

Wrought

WTI (West Texas Intermediate)

WTO (World Trade Organization)