(1):

(v. i.) To move somewhat like an ambling horse; to go easily or without hard shocks.

(2):

(n.) A movement like the amble of a horse.

(3):

(n.) A peculiar gait of a horse, in which both legs on the same side are moved at the same time, alternating with the legs on the other side.

(4):

(v. i.) To go at the easy gait called an amble; - applied to the horse or to its rider.