nouns
a general direction in which something tends to move
"the shoreward tendency of the current"; "the trend of the stock market"
general line of orientation
"the river takes a southern course"; "the northeastern trend of the coast"
a general tendency to change (as of opinion)
"not openly liberal but that is the trend of the book"; "a broad movement of the electorate to the right"
the popular taste at a given time
"leather is the latest vogue"; "he followed current trends"; "the 1920s had a style of their own"