Dad (noun)

A father; the male parent of a child.

Origin:

Shortened form of "daddy", which comes from the middle english word "dadde", meaning "father".

Examples:

1. I called my dad to wish him a happy Father's Day.
2. My dad is the one who taught me how to play baseball.
3. I'm going to ask dad if I can borrow the car.
4. I can always count on my dad for good advice.
5. We're going to visit dad at his office later.