- oh
- oh [əu US ou] interjection[Date: 1500-1600; Origin: O 1]1.) used when you want to get someone's attention or continue what you are saying▪ Oh, look, I think that's Harry over there.▪ Milk, cereal, juice - oh, and put lettuce on the list too.2.) used when you are giving an answer to a question▪ 'Have you met his wife?' ' Oh, yes, I know her quite well.'▪ 'I hope Jenny won't be angry.' ' Oh, no, don't worry about that.'oh, okay/all right▪ 'Can you lend me ten pounds?' 'Oh, all right, but only until tomorrow.'3.) used to make a slight pause when you are speaking▪ I met your friend in town, oh, what's her name?4.) used to show that you are very happy, angry, disappointed etc about something▪ Oh, aren't those flowers gorgeous!▪ Oh, how awful!▪ Oh, no! I've left my keys in the car!oh, good/great▪ Oh, good, you're still here.oh, God/oh, dear etc▪ Oh, God, I forgot all about it!▪ Oh, well, never mind.5.) used to show that you are surprised about something▪ 'Frances has left her husband, you know.' 'Oh, has she?'▪ Oh, I didn't know that.
Dictionary of contemporary English. 2013.