IPA: /ˈdræfts.mən/
KK: /ˈdræftsˌmæn/
A person who creates detailed drawings or plans, often for buildings or machinery.
The draftsman presented the blueprints for the new office building.
Draftsman → It is formed from "draft" (from Middle English *drafte*, meaning a drawing or sketch) and "-sman" (meaning a person who does). A draftsman is a person who creates drawings or sketches, particularly in technical fields.
Think of someone who creates a 'drawing' ('draft') — the '-sman' indicates that this person specializes in making those drawings.