interjection An expression of relief, relaxation, comfort, confusion, understanding, wonder, awe, etc. according to uttered inflection.
Ah, I understand now.
interjection A syllable used to fill space, particularly in music.
noun An instance of the interjection ah.
the crowd's oohs and ahs at the fireworks
verb To give a cry of "ah".
pronoun Pronunciation spelling of I, most often indicating that the speaker is using a Scottish or American (particularly Southern) accent or African-American Vernacular English.
particle Marks a yes–no tag question prompting the listener to clarify or confirm something.
Pitch contour: low-mid /ɑ(ː)˨/, [ä˨]
particle Reinforces a short, non-rhetorical wh-question.
Pitch contour: rising /ɑ(ː)˨˦/
particle Emphasizes the need for absolute confirmation, permission or acknowledgment.