• 父親ちちおや — father (formal)
• 祖父そふ — grandfather
• 義父ぎふ — father-in-law
• 父母ふぼ — parents
• 神父しんぷ — priest (Catholic)
• 漁父ぎょふの利り — advantage gained by a third party

This character began as a picture of a hand holding a tool, symbolizing the father as protector or provider. It's a common base for family-related words in Japanese.

父ちちは 毎朝まいあさ早はやく出でかけます。
My father leaves early every morning.

父親ちちおやとして、責任せきにんを持もっています。
As a father, he takes responsibility.