asphyxiate /əsˈfɪksieɪt/ verb2 •To smother or suffocate someone.A 39-year-old British woman was killed when a malfunctioning ottoman bed fell on her neck and asphyxiated her, a coroner’s report said. — 2024 •To be smothered or suffocated. formsasphyxiated · asphyxiating · asphyxiates