U/S


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AcronymDefinition
u/sUltrasound
U/SUpstream (Process Engineering)
U/SUnderside
U/SUnsatisfactory
U/SUpstage
U/SUnserviceable
U/SUnderstudy (theater)
U/SUnder Saddle (equestrian term for a show class that doesn't include jumping over fences)
U/SUser/Station