From Japanese-English FreeDict Dictionary ver. 0.1:
[news2] [nf36] お使い, 御使い, 御遣い, お遣い, (irregular okurigana usage) お使, [news2] [nf36] おつかい
1. (noun (common) (futsuumeishi))
使い・つかい・1
Note: polite (teineigo) languageerrand, mission, going as envoy
2.
Note: polite (teineigo) languagemessenger, bearer, errand boy, errand girl
3.
Note: polite (teineigo) language
Note: honorific or respectful (sonkeigo) languagefamiliar spirit