Ọ

• (phoneme): IPA^(key): /ɔ/
• (letter name): IPA^(key): /ɔ́ɔ̀/

Ọ (upper case, lower case ọ)

1. The twenty-fifth letter of the Igala alphabet, called ọ́ọ̀ and written in the Latin script.

• (Latin-script letters) àmulú-ùkọ̀là; A a (Á á, À à, Ā ā), B b, Ch ch, D d, E e (É é, È è, Ē ē), Ẹ ẹ (Ẹ́ ẹ́, Ẹ̀ ẹ̀, Ẹ̄ ẹ̄), F f, G g, Gb gb, Gw gw, H h, I i (Í í, Ì ì, Ī ī), J j, K k, Kp kp, Kw kw, L l, M m, N n (Ṅ ṅ), Ñ ñ, Ñm ñm, Ñw ñw, Ny ny, O o (Ó ó, Ò ò, Ō ō), Ọ ọ (Ọ́ ọ́, Ọ̀ ọ̀, Ọ̄ ọ̄), P p, R r, T t, U u (Ú ú, Ù ù, Ū ū), W w, Y y

• IPA^(key): /ɒ̙/

Ọ (lower case ọ)

1. The twenty-fifth letter of the Igbo alphabet, written in the Latin script.

Ọ (uppercase, lowercase ọ)

1. The twenty-fourth letter of the Isoko alphabet, written in the Latin script.

• E. O. Agbada et al, Vbuhrẹ Ụmụ́bọrá Isoko (Teach Yourself Isoko), first published 2008, revised edition 2017, pages 8, 10-11
• Onyerioma Isaac Itegolor, Isoko Wha Dooo...! Book 2 (Operation Speak Your Language), Revised Standard Edition (2015), page 1
• Joe Okedi, Abidi Isoko Na Kpobi, 2020

• (phoneme): IPA^(key): /ɔ/
• (letter name): IPA^(key): /ɔ́/

Ọ (upper case, lower case ọ)

1. The seventeenth letter of the Yoruba alphabet, called ọ́ and written in the Latin script.

• (Latin-script letters) lẹ́tà; A a (Á á, À à, Ā ā), B b, D d, E e (É é, È è, Ē ē), Ẹ ẹ (Ẹ́ ẹ́, Ẹ̀ ẹ̀, Ẹ̄ ẹ̄), F f, G g, Gb gb, H h, I i (Í í, Ì ì, Ī ī), J j, K k, L l, M m (Ḿ ḿ, M̀ m̀, M̄ m̄), N n (Ń ń, Ǹ ǹ, N̄ n̄), O o (Ó ó, Ò ò, Ō ō), Ọ ọ (Ọ́ ọ́, Ọ̀ ọ̀, Ọ̄ ọ̄), P p, R r, S s, Ṣ ṣ, T t, U u (Ú ú, Ù ù, Ū ū), W w, Y y
• (Benin)
• (Latin-script letters) lɛ́tà; A a, B b, D d, E e, Ɛ ɛ, F f, G g, Gb gb, H h, I i, J j, K k, Kp kp, L l, M m, N n, O o, Ɔ ɔ, P p, R r, S s, Sh sh, T t, U u, W w, Y y