(US military) the father of a member of the U.S. armed forces who was killed in action

(military) A type of Russian-designed, large-yield conventional bomb, the Aviation Thermobaric Bomb of Increased Power.

The father of one's boyfriend or girlfriend. / The father of any of one's friends. / The father of one's ex-spouse.

Passed down from a father to his son.

(US) A day designated for fathers and their daughters to spend time together and celebrate their relationship; often the second Sunday of October.

plural of father-daughter day

Many people will seek credit for success, but few will accept responsibility for failure.

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

One could be someone's parent, said of a man older than a woman.

(idiomatic, colloquial, humorous) A notional look of anticipation or hope (either for sex or a child) in one's father's eyes at or around the time of one's conception.