Dictionary definition · ply
noun
- one of the strands twisted together to make yarn or rope or thread; often used in combination"three-ply cord"
- (usually in combinations) one of several layers of cloth or paper or wood as in plywood
verb
- give what is desired or needed, especially support, food or sustenance"The hostess provided lunch for all the guests"
- apply oneself diligently"Ply one's trade"
- travel a route regularly"Ships ply the waters near the coast"
- join together as by twisting, weaving, or molding"ply fabric"
- wield vigorously"ply an axe"
- use diligently"ply your wits!"
Source: Open English WordNet (CC BY 4.0).