dad

noun Informal.

1. father.

interjection Informal.

1. God (used in combination in mild oaths): dad-blamed; dad-gummed.

noun Scot. and North England.

1. a solid blow or knock.
2. a large slice, lump, or portion.

noun

1. the 15th letter of the Arabic alphabet.

noun

1. an informal word for father

n.

recorded from c.1500, but probably much older, from child’s speech, nearly universal and probably prehistoric (cf. Welsh tad, Irish daid, Czech, Latin, Greek tata, Lithuanian tete, Sanskrit tatah, all of the same meaning).