Pronunciation (US) IPA (key): /əˈdɑp.ʃən/ (UK) IPA (key): /əˈdɒp.ʃən/ Audio (UK)(file) Hyphenation: adop‧tion Noun Singular adoption Plural adoptions An act of adopting a child by different parents so that the child becomes one of their own. The dog was available for adoption, so I decided to take it.Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads