Filipino · Greetings & Phrases
Yes
An affirmative answer; opo is the polite form used with elders.
Estudyante ka ba? — Oo.
Are you a student? — Yes.
'Oo' means 'yes', with its roots in Proto-Austronesian languages where affirmations often had simple forms.
'Oo' is widely used in both formal and informal speech as a simple affirmation, and is predominantly spoken.