/ Thesaurus / T Synonyms of t square Find synonyms for: Noun1. T-square, square, drafting instrumentusage: a square used by draftsmen to draw parallel linesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language