/ Dictionary / Index T trine: Meaning and Definition of Find definitions for: trine Pronunciation: (trīn), [key] — adj. threefold; triple. of or pertaining to the trigon aspect of two planets distant from each other 120°, or the third part of the zodiac. —n. a set or group of three; triad. (cap.) the Trinity. a trine aspect of two planets, indicative of ease and accomplishment. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: trine (Thesaurus) trindle trine immersion Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language