any small brown passerine songbird of the chiefly American family Troglodytidae, esp Troglodytes troglodytes (wren in Britain, winter wren in the US and Canada). They have a slender bill and feed on insects

any of various similar birds of the families Muscicapidae (Australian warblers), Xenicidae (New Zealand wrens), etc

(in Britain and certain other nations) a member of the former Women's Royal Naval Service

Sir Christopher. 1632–1723, English architect. He designed St Paul's Cathedral and over 50 other London churches after the Great Fire as well as many secular buildings