/ Dictionary / Index C circularize: Meaning and Definition of Find definitions for: cir•cu•lar•ize Pronunciation: (sûr'kyu-lu-rīz"), [key] — -ized, -iz•ing. to circulate (a letter, memorandum, etc.). to send circulars to. to publicize, esp. by mailing or handing out circulars. to make circular. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: circularize (Thesaurus) circular function circular-knit Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language