/ Dictionary / Index K Killingly: Meaning and Definition of Find definitions for: Kil•ling•ly Pronunciation: (kil'ing-lē), [key] — n. a town in NE Connecticut. 14,519. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: killingly (Thesaurus) killing frost kill-joy Related Content Daily Word Quiz: quandary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language