uh-huh; mm-hmm
Casual interjection used to show agreement or that one is listening, often repeated.
"Can you finish by tomorrow?" "Uh-huh, no problem."
adverb, adverb taking the 'to' particle
with a moan; with a groan
Adverb describing a groaning or moaning sound, often used with と.
He groaned with a moan.