YEAH

[adverb] [not gradable] [informal] - yes"Do you like your job?" "Yeah, it's all right I suppose."Yeah, I understand what you're saying."Will you drive?" "Yeah, sure."Yeah, that's really great."I can run faster than you any day!" "(Oh) yeah? (= I don't believe you)""Anyway, we're just good friends." "Yeah, yeah (= I don't believe you)!"