Paper used for writing or printing WordNet 3.0 & Open English WordNet

A single rectangular piece of paper. OmegaWiki

A piece of paper, usually rectangular, that has been prepared for writing, artwork, drafting, wrapping, manufacture of packaging (boxes, envelopes, etc.), and for other uses. The word does not include scraps and irregular small pieces destined to be recycled, used for stuffing or cushioning or paper mache, etc. Wiktionary