An exclamation or expression of alarm, concern, or resentment about a problem or error.

Expression of surprise. / Expression of wonder, amazement, or awe. / Expression of understanding, affirmation, recognition, or realization. / A word to precede an offhand or annoyed remark.

(sports) A game or time period in which a player did not manage to sustain a particular attainment. / (baseball) An instance in which a player did not get a hit in a game.

simple past tense and past participle of oh

A surname from Chinese.

A surname from Korean derived from a common Korean surname.

plural of oh

Third-person singular simple present indicative form of oh

plural of OH

Initialism of occupational health and safety.