O . . . is for orange.
(ä, as in the a in arm)
Spanish: (la) naranja
Pronunciation: (lah) nah•RAHN•khah**
Note: l', הַ, and la = the.
*The capital N signifies the nasal quality of the vowel sound that comes before it. The N itself is pronounced softly.
**kh = ch, as in Scottish loch.