The Simple English Wikipedia has an article on: Decade decade is on the Academic Word List. Pronunciation enPR: dəkād', dĕk'ād IPA (key): /dəˈkeɪd/ or /ˈdekeɪd/ SAMPA: /d@"keId/ or /"dekeId/ Audio (US)(file) Noun Singular decade Plural decades A decade is a period of 10 years. The 1960s was a decade of great change in North America. Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads