noun
Polite and common term for one's own father or someone else's father. Used both referentially and as a form of address.
See also: 父さん
お父さんは会社員です。
My father is an office worker.
お父さん、ちょっと来て。
Dad, come here a moment.
noun
Used by a wife to refer to her own husband, especially when speaking to children or others. Carries a warm, familiar tone.
うちのお父さんは料理が上手なの。
My husband is good at cooking.
pronoun
Familiar, somewhat old-fashioned way to address or refer to an elderly man older than the speaker. Can sound patronizing if used inappropriately.
お父さん、お元気ですか。
How are you, sir? (to an elderly man)