oh

Universal Words (also less frequent O) exclamation 1 used when you are reacting to sth that has been said, especially if you did not know it before: 'I saw Ben yesterday.' 'Oh yes, how is he?' * Oh dear! What's happened now? * You can't come tonight? Oh well, see you next week then. * 'Emma has a new job.' 'Oh, has she?' 2 used to express surprise, fear, joy, etc: Oh, how wonderful! * Oh no, I've broken it! 3 used to attract sb's attention: Oh, Sue! Could you help me a moment? 4 used when you are thinking of what to say next: I've been in this job for, oh, about six years.