/ Dictionary / Index J January: Meaning and Definition of Find definitions for: Jan•u•ar•y Pronunciation: ( jan'y-er"ē), [key] — pl. -ar•ies. the first month of the year, containing 31 days. Abbr.: Jan. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: january (Thesaurus) Januarius Janus Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language