a father or mother; one who begets or one who gives birth to or nurtures and raises a child; a relative who plays the role of guardian

a woman who has given birth to a child (also used as a term of address to your mother)

an informal term for a father; probably derived from baby talk

the father of your spouse

an informal term for your father

an informal use of the Latin word for father; sometimes used by British schoolboys or used facetiously