nd) KEY NOUN:
- The general direction in which something tends to move.
- A general tendency or inclination. See Synonyms at tendency.
- Current style; vogue: the latest trend in fashion.
- To extend, incline, or veer in a specified direction: The prevailing wind trends east-northeast.
- To show a general tendency; tend: "The gender gap was trending down" (James J. Kilpatrick).
From Middle English trenden
, to revolve
, from Old English trendan