The meaning of DAD is a male parent : father —often used as a name.

The male parent of a human being; a man in relation to his child or children. Also occasionally: a male animal in relation to its offspring. (The male counterpart of mothern.1 I.1a.)

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

: a male parent (2) : a man who has begotten a child also : a male animal who has sired an offspring

[ dad ] Phonetic (Standard)IPA noun a person’s father or one’s father. a person who is corny or embarrassing in the way that a father figure might be: He was being such a dad when he told that story. a term of endearment used to refer to a man or boy who is admired: A bunch of teens commented “HI DAD!” on the rapper’s post.