Added 12 October 2026 yessir /ˈjɛsɜː(ɹ)/ interjection Categories: Rare Words interjection ! Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about yessir at Wordnik → Where our words come from → Used to express assent, especially to a male superior. Used to express emphatic affirmation. noun Term of address to a male; mate; buddy. Origin From yes + sir. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: sirmateshipmatechampfellow-me-laddudebrothersirrah Back to today's word