(transitive, intransitive) to ride (a horse) [auxiliary avere] / (transitive, figurative, by extension) to sit astride on / (transitive, archaic, by extension) to pass by (a place) with a horse / (transitive) to take advantage of (a situation created by someone else); to be opportunistic; to ride the wave / (figurative, transitive) to span (to traverse the distance between, of a bridge etc.) / (transitive, vulgar, slang) to make, have (sexually)