Macedonian Pronunciation IPA(key): [ˈbi(j)ɔ] Adjective био • (bio) (indeclinable, not comparable) (food) BIO, organic Serbo-Croatian Pronunciation IPA(key): /bîo/ Hyphenation: би‧о Adjective би̏о (Latin spelling bȉo, definite бије̑лӣ, comparative бјѐљӣ) Alternative form of бије̑л. Verb био Active masculine past participle of бити.Wikiwand - on Seamless Wikipedia browsing. On steroids.