flock — Birds flock /flɒk/ noun CEFR A2 A group of birds or sheep. “A flock of birds flew over the lake.” Related words in this scene flychickwingnestfeatherowlduckbeaksingpeacockparroteaglesparrowswanpigeoncrowrobinhawkhatchtalonmigrateperchhootquacktweetbirdcagebirdhousesoarflappeck Practice this word Create worksheet