Owe
Owe.
A 3-letter word that means "which person" is "who."
Who is a person. Man is a person. She is a person.
Oaf
who
This is likely the interrogative pronoun "who."
bookkeeper
3 letter word for old oldsmobile
Another 3 letter word for respect is awe.
A 3 letter word meaning pallid is wan.
pontoon