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English definition of “capacity”

capacity

noun [C or S or U] (AMOUNT)    /kəˈpæs.ə.ti/ US  /-t̬i/
B2 the total amount that can be contained or produced, or (especially of a person or organization) the ability to do a particular thing: The stadium has a seating capacity of 50,000. The game was watched by a capacity crowd/audience of 50,000 (= the place was completely full). She has a great capacity for hard work. The purchase of 500 tanks is part of a strategy to increase military capacity by 25 percent over the next five years. [+ to infinitive] It seems to be beyond his capacity to (= he seems to be unable to) follow simple instructions. Do you think it's within his capacity to (= do you think he'll be able to) do the job without making a mess of it? The generators each have a capacity of (= can produce) 1,000 kilowatts. The larger cars have bigger capacity engines (= the engines are bigger and more powerful). All our factories are working at (full) capacity (= are producing goods as fast as possible). We are running below capacity (= not producing as many goods as we are able to) because of cancelled orders. He suffered a stroke in 2008, which left him unable to speak, but his mental capacity (= his ability to think and remember) wasn't affected.Measurements of volumeGeneral words for size and amountInformal measurements of volumeSkill, talent and ability
(Definition of capacity noun (AMOUNT) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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