society > leisure > dancing > ball or dance > take part in ball [verb (transitive)] > lead out partner (3)
transitive. To take (a person) to a public place for purposes of pleasure or entertainment. Also: to take (an animal) outside for exercise.
transitive. To conduct (a partner) from a group of people in order to dance; to dance with (a chosen partner). Now rare.
transitive. = to lead off at phrasal verbs. Also, to conduct (a partner) to the dance.