ōu ba sāng
older female
woman of mature years (Japanese loanword)
Ōu bā mǎ
Taiwanese variant of 奧巴馬|奥巴马[Ao4 ba1 ma3], Barack Obama (1961-), US Democrat politician, president from 2009
ōu bā
(female usage) older brother (loanword from Korean "oppa")
male friend