From WordNet (r) 3.0 (2006):
swerve
n 1: the act of turning aside suddenly [syn: swerve,
swerving, veering]
2: an erratic deflection from an intended course [syn: yaw,
swerve]
v 1: turn sharply; change direction abruptly; "The car cut to
the left at the intersection"; "The motorbike veered to the
right" [syn: swerve, sheer, curve, trend, veer,
slue, slew, cut]