Longman Dictionary of Contemporary English - gallop

~1 v 1 if a horse gallops, it moves very fast with all its feet leaving the ground together + along/across/towards  (wild horses galloping over the sand) 2 if you gallop, you ride very fast on a horse or you make it go very fast + along/across/towards  (I watched as Jan galloped away.) 3 to move very quickly  (Ian came galloping down the stairs.) gallop through sth phr v informal to do a job, some work etc very quickly  (Neil galloped through his homework .) ~2 n 1 a) the movement of a horse at its fastest speed when all four feet leave the ground together  (break into a gallop (=begin to go very fast)) b) a ride on a horse when it is galloping 2 at a gallop a) at the fastest speed possible when riding a horse  (Rogers set off at a gallop.) b) informal very quickly