ChardonnayPronunciation: /ˈʃɑːdəneɪ/Definition of Chardonnay noun [mass noun] a variety of white wine grape used for making champagne and other wines. a wine made from the Chardonnay grape. Origin:FrenchSpelling helpSpell Chardonnay with a double n.Chardonnay in other Oxford dictionaries Definition of Chardonnay in the US English dictionary