Entry 2 senses · 2 variants Webster, 1913 moonie /(mo͞o"nē)/ · moo·nie · IPA /mˈuːniː/ n. prop. n. 01 n. The European goldcrest. 1. The European goldcrest.(Zool.) 02 prop. n. A member of the Unification Church, founded by Sun Myun Moon. 1. A member of the Unification Church, founded by Sun Myun Moon.[informal & contemptuous.]