trend / trend/ • n. a general direction in which something is developing or changing: an upward trend in sales and profit margins. ∎ a fashion: the latest trends in modern dance.• v. [intr.] (esp. of geographical features) bend or turn away in a specified direction: the Richelieu River trending southward to Lake Champlain. ∎ change or develop in a general direction: unemployment has been trending upward.
Hence trend sb. the way something turns away, general direction. XVIII.