From Longman Dictionary of Contemporary Englishhorsemanhorse‧man /ˌhɔːsmən $ ˈhɔːrs-/ noun (plural horsemen /-mən/) [countable] DRIVEsomeone who rides horses
Examples from the Corpus
horseman• Down Agamemnon Street, leaping motor cars and fleeing rioters came a hoard of Afghani horsemen.• What he obviously had in mind was the manoeuvre carried out by horsemen displaying their skill at a gymkhana.• The summer fair circuit is the target of escalating attacks from the major tracks and some leading horsemen.• The horseman was watching me, he switched off the radio and nudged his horse closer.• The horsemen just charged forward, guns aimed at us.• Caledor called for brave young horsemen to bear his messages and ride the troubled land. 