Definitions
interjection of surprise
Ah!
Oh!
interjection expressing doubt or requiring answer
Eh?
what?
to show realization
to stress
interjection of surprise or doubt
Eh?
My!
what's up?
interjection or grunt of agreement
uhm
Ah, OK
expression of recognition
Oh, it's you!
modal particle ending sentence, showing affirmation, approval, or consent