Answer: hups

AnswerCrossword Clue
HUPSMarching syllables
HUPSCadence sounds, in the military
HUPSDrill cadence syllables
HUPSInterjections to urge on a horse.
HUPSCommands to a horse.
HUPSSounds to urge on a horse.
HUPSWords used to urge on horses.
HUPSCalls to a horse
HUPSCadence sounds
HUPSCadence syllables
hupsHUP, to go faster (by shouting hup to a horse)