/ Dictionary / Index T topicalize: Meaning and Definition of Find definitions for: top•i•cal•ize Pronunciation: (top'i-ku-līz"), [key] — -ized, -iz•ing. to introduce as, convert into, or mark as the topic of a sentence. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: topicalize (Thesaurus) topicality topic sentence Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language