• 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 pictograph of a hand holding a tool, symbolizing the father as protector or provider. It is a common base for family-related words in Japanese.