| Dilate 1. (v. t.) To expand; to distend; to enlarge in all directions; as, the light dilates the pupils; air is dilated by increase of heat. 2. (v. t.) To enlarge upon; to relate at large; to tell copiously or diffusely. 3. (v. i.) To grow wide; to expand; to swell or extend in all directions. 4. (v. i.) To speak largely and copiously; to dwell in narration; to enlarge; -- with on or upon. 5. (a.) Extensive; expanded. Thesaurus Entries add to, aggrandize, amplify, augment, bag, balloon, belly, belly out, bilge, billow, bloat, blow up, bouge, broaden, bug, build, build up, bulge, bulk, bulk out, crescendo, descant, describe, detail, develop, discuss, dissert, dissertate, distend, elaborate, enlarge, enlarge upon, evolve, expand, expatiate, explicate, extend, fill out, goggle, greaten, hike, hike up, huff, increase, inflate, lengthen, magnify, narrate, particularize, pooch, pop, pouch, pout, prolong, protract, puff, puff up, pump, pump up, raise, rarefy, recite, recount, rehearse, rehearse in extenso, relate, relate at large, round out, sermonize, snowball, stretch, sufflate, swell, swell out, tumefy, unfold, up, widen, work out |