(LONGMAN2000) brain | Definition: 脑 | (IELTS4000) brain | Definition: organ or seat of intellect; understanding or imagination | (NGSL) brain | Definition: The part of the head that thinks and controls your body | | (ESS4000) brain | Definition: The brain is the organ in your head that lets you think. | Example: →You must use your brain to solve the problem. | | (ESS4000) brainstorm | Definition: To brainstorm is to have a lot of ideas about a certain topic. | Example: →The students met after school to brainstorm ideas for their assignment. |