olive UK /ˈɒ.lɪv/US /ˈɑ.lɪv/noun 9adjective 1forms 3 noun9 •a small fruit with a hard center, green while young and black when fully grown, eaten or pressed for oilTrevor, like an Aussie outbacker, eats snacks and a pickup meal of bread, cantaloupe, olives, mangoes, and melon. — 2010 •A tree of species Olea europaea cultivated since ancient times in the Mediterranean for its fruit and the oil obtained from it. •A dark yellowish-green color, that of an unripe olive. •The wood of the olive tree. •A small slice of meat seasoned, rolled up, and cooked. •A component of a plumbing compression joint; a ring which is placed between the nut and the pipe and compressed during fastening to provide a seal. •Any shell of the genus Oliva and allied genera; so called from the shape. •An olivary body, part of the medulla oblongata. •(dialect, UK) An oystercatcher, a shore bird of genus Haematopus. adjective1 •Of a grayish green color, that of an unripe olive. formsolives · more olive · most olive