WordNet sense 1 (a female sovereign ruler):

female monarch, queen regnant

WordNet sense 2 (a competitor who holds a preeminent position):

king, world-beater

WordNet sense 3 (offensive terms for an openly homosexual man):

fagot, fairy, pansy, nance, poove, pouf

WordNet sense 4 (an especially large mole rat and the only member of a colony of naked mole rats to bear offspring which are sired by only a few males):

queen mole rat

WordNet sense 5 (female cat):

tabby