Plywood - CenturyPly offers highest quality plywood sheets in India at best prices. Go through our plywood sheet price list for best quality plywood products. The meaning of PLY is to use or wield diligently. How to use ply in a sentence. PLY is a computer file format known as the Polygon File Format or the Stanford Triangle Format. It was principally designed to store three-dimensional data from 3D scanners. The data storage format supports a relatively simple description of a single object as a list of nominally flat polygons. A variety of properties can be stored, including color and transparency, surface normals, texture coordinates and data confidence values. The format permits one to have different properties for the ... Ply can be a verb meaning to work with, use, or offer something, or a noun meaning a layer, strand, or sheet. Learn the different meanings, examples, and synonyms of ply from various dictionaries and sources.