tr.v., plied (plīd), ply·ing, plies (plīz).
- To join together, as by molding or twisting.
- To double over (cloth, for example).
- A layer, as of doubled-over cloth or of paperboard.
- One of the sheets of wood glued together to form plywood.
- A layer of rubber-coated fabric, often of nylon or polyester cords, forming the body of an automobile tire.
- One of the strands twisted together to make yarn, rope, or thread. Often used in combination: three-ply cord.
- A bias; an inclination.
[Middle English plien, from Old French plier, alteration of pleier, from Latin plicāre, to fold.]
ply2 (plī)
v., plied (plīd), ply·ing, plies (plīz). v.tr.
- To use diligently; wield: ply a knitting needle.
- To engage in diligently; practice: plied the carpenter's trade. See synonyms at handle.
- To traverse or sail over regularly: Trading ships plied the routes between coastal ports.
- To continue offering something to; ensure that (another) is abundantly served: plied their guests with excellent food.
- To assail vigorously.
- To traverse a route or course regularly: The boat plies between the islands on a weekly schedule.
- To perform or work diligently or regularly: plied at the weaver's trade for 20 years.
- Nautical. To work against the wind by a zigzag course; tack.
[Middle English plien, from applien, to apply. See apply.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.