cellar UK /ˈsɛlə/US /ˈsɛləɹ/noun 5verb 1forms 3phrases 1 noun5 •a room below the ground, often under a house, where things are kept or where people can stay safeThe farmhouse has several additions, added over many decades; it has three cellars, and one of them is older than the other two. •A basement.Most of my tools and hardware are in the garage, but I keep some tools in the cellar, too, mainly for convenience. •A wine collection, especially when stored in a cellar.The insurance company valued his cellar at $27,000, largely on the strength of his bottles of 1972 Château Hypothetica. •(slang) Last place in a league or competition; some rank near last place.The Tigers have been in the cellar all year long, and I'm tired of it. •salt cellar verb1 •To store (something, especially food or wine) in a cellar. formscellared · cellaring · cellars Phrases with cellar down cellarDownstairs; the opposite of upstairs.