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verb. create, invent. 1  brainstorm. 2  compose. 3  conceive. 4  contrive. 5  counterfeit. 6  dream up. 7  fabricate. 8  forge. 9  formulate. 10  frame. 11  head trip. 12  make up. 13  make up off the top of one's head. 14  manufacture. 15  mint. 16  mold. 17  originate. 18  spark. 19  spitball. 20  stamp. 21  strike. 22  think up. 23  trump up.
Blog. A must for anyone with an interest in the changing face of language. The Macmillan Dictionary blog explores English as it is spoken around the world today. Definition and synonyms of brainstorm from the online English dictionary from Macmillan Publishers Limited.