To step; go; proceed.To follow; pursue, as a path or course.To touch; handle; feel of.Threefold; triple: as, trine dimension (that is, length, breadth, and thickness).In astrology, pertaining to a trine; being in trine.n. A set or group of three; a trio; a triad.n. Specifically, the Trinity.n. In astrology, the aspect of two planets distant from each other 120 degrees, or the third part of the zodiac. The trine was supposed to be a benign aspect.n. In heraldry, a group of three, especially three animals, used as a bearing.To put or join in the aspect of trine.To hang: in allusion to the triple tree—that is, the gallows.