Japanese

Noun

おく ‎(romaji oku)

1. 億: 10⁸ = 100×10⁶ = 100 million
2. 奥: inside

Verb

おく ‎(godan conjugation, romaji oku)

1. 置く: to put
2. (following a て-form verb) to do in advance; to do for some future purpose