Pronunciation (UK) IPA (key): /ˈsɛnɪt/ (US) IPA (key): /ˈsɛnət/ or /ˈsɛnɪt/ (AU) IPA (key): /ˈsenət/ Audio (US)(file) Noun Singular senate Plural senates (countable) (politics) A senate is the smaller upper assembly of a country.Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads