GRE TOEFL IELTS flock Definition A group of birds or sheep; to gather or move together in a group. Example "A flock of geese flew south for the winter." Sign in to save GRE PDF — $25 TOEFL PDF — $25 IELTS PDF — $25 ← float floe → Study tips featuring "flock" TOEFL Academic Vocabulary: Study by Topic Boost Your IELTS Writing With Precise Vocabulary Related words GRE awe GRE smithereens GRE abacus SAT abase GRE abash GRE abate GRE abbreviate GRE abbreviation SAT abdicate SAT abdomen GRE abduct GRE aberrant