Entry 1 sense Webster, 1913 Oberon /(ŏb"ẽr*ŏn)/ · Ob·er·on · IPA /ˈoʊbərɒn/ 01 prop. n. The king of the fairies, and husband of Titania or Queen Mab. 1. The king of the fairies, and husband of Titania or Queen Mab.(Mediaeval Mythol.)