(chiefly US) Any of the men who were responsible for the founding of the United States of America. Chiefly used to refer to political leaders who drafted the Declaration of Independence and the United States Constitution, and to military leaders who fought in the American Revolutionary War.

A man who founded something.

(Christianity) The devil; Satan. / Herodotus, so called because of his controversial works.

A son will have traits similar to his father upon reaching adulthood.

having the qualities of a father

A holiday in celebration of fatherhood, or to honor fathers, celebrated on the third Sunday of June in most of the world's countries. See Wikipedia:Father's Day:Dates.

A personification of time as an old man, usually carrying an hourglass.

plural of fathead

(derogatory) An idiot; a fool. / A cyprinid fish of the Mississippi valley, Pimephales promelas, the black-headed minnow.

(formal) The Jewish or Christian God.