Semantics Posted on 21st December 20158th May 2021 by ThePD (The Project Definition) Semantics is the branch of linguistic science which deals with the meaning of words. Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window) Related Posted in General and tagged science. ThePD (The Project Definition) ThePD has been developing the Preferred Project Definitions based on the actual project execution and operation experiences and knowledge with the Project Language, and sharing with you daily basis.