WordNet sense 1 (a general direction in which something tends to move):

tendency

WordNet sense 2 (general line of orientation):

course

WordNet sense 3 (a general tendency to change (as of opinion)):

drift, movement

WordNet sense 4 (the popular taste at a given time):

vogue, style

WordNet sense 5 (turn sharply; change direction abruptly):

curve, cut, sheer, slew, slue, swerve, veer