See also Cancer The Simple English Wikipedia has an article on: Cancer Pronunciation (AU) IPA (key): /ˈkæːnsə/ (UK) IPA (key): /ˈkænsə/ (US) IPA (key): /ˈkænsɚ/ Audio (US)(file) Audio (UK)(file) Hyphenation: can‧cer Noun Singular cancer Plural cancers (medicine) Cancer is a disease where cells grow to a tumor. Smoking is the main cause of lung cancer. Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads