Added 10 October 2026 sines /saɪnz/ noun Categories: Describing WordsActionsRare Words noun ! Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about sines at Wordnik → Where our words come from → plural of sine pair of sixes of dice Related Words: sinfulnesswickednessgoofblunderboobhellversedsixessisesicesizenoncuple Back to today's word