- 1 [intransitive, transitive] to give all your attention to something and not think about anything else concentrate (on something/on doing something) I can't concentrate with all that noise going on. concentrate something Nothing concentrates the mind better than the knowledge that you could die tomorrow (= it makes you think very clearly). concentrate something (on something/on doing something) I decided to concentrate all my efforts on finding somewhere to live.
- 2[transitive] concentrate something + adv./prep. to bring something together in one place Power is largely concentrated in the hands of a small elite. We need to concentrate resources on the most run-down areas. Fighting was concentrated around the towns to the north. Never concentrate the heat in one place for too long.
- 3[transitive] concentrate something (specialist) to increase the strength of a substance by reducing its volume, for example by boiling it synonym reduce Word Origin mid 17th cent. (in the sense ‘bring towards a centre’): Latinized form of concentre, fromcon-
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BrE BrE//ˈkɒnsntreɪt//; NAmE NAmE//ˈkɑːnsntreɪt//Verb Forms present simple I / you / we / they concentrate
BrE BrE//ˈkɒnsntreɪt//; NAmE NAmE//ˈkɑːnsntreɪt//he / she / it concentrates
BrE BrE//ˈkɒnsntreɪts//; NAmE NAmE//ˈkɑːnsntreɪts//past simple concentrated
BrE BrE//ˈkɒnsntreɪtɪd//; NAmE NAmE//ˈkɑːnsntreɪtɪd//past participle concentrated
BrE BrE//ˈkɒnsntreɪtɪd//; NAmE NAmE//ˈkɑːnsntreɪtɪd//-ing form concentrating
BrE BrE//ˈkɒnsntreɪtɪŋ//; NAmE NAmE//ˈkɑːnsntreɪtɪŋ//