Pronunciation (UK) IPA (key): /ˈsɛnt͡ʃʊri/ or /ˈsɛnt͡ʃri/ (US) IPA (key): /ˈsɛn(t)ʃ(ə)ri/ Audio (US)(file) Audio (AU)(file) Homophone: sentry (for some speakers) Hyphenation: cen‧tu‧ry, cent‧ury Noun Singular century Plural centuries (countable) A century is a period of 100 years. My great grandfather came to Canada over a century ago. The telephone was invented in the 19th century. Centuries passed before the slaves were freed. Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads