h-huh [informal] - a written representation of the sound that people sometimes make in order to give certainty to, agree with or show understanding of something that has just been said"Did you hear what I just said?" "Uh-huh.""You know that strange guy we saw yesterday?" "Uh-huh." "Well, he was outside the house again this morning.""Does he like his new job?" "Uh-huh, he seems to."
U
Meaning of U in English
Cambridge English vocab. Кембриджский английский словарь. 2012