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English definition of “sustain”

sustain

verb [T]     /səˈsteɪn/
CONTINUE to cause or allow something to continue for a period of time : The team may not be able to sustain this level of performance .Tolerating and enduringCoping and not copingDealing with things or people
SUPPORT to support someone or something so that they can live or exist : The money he received was hardly enough to sustain a wife and five children .Giving, providing and supplyingBacking, supporting and defendingDefending and protecting
sustain damage/injuries/losses formal to be injured / damaged , etc .: She later died in hospital of the injuries sustained in the accident .Experiencing and sufferingInjuring and injuriesDamaging and spoilingDestroying and demolishing
(Definition of sustain verb from the Cambridge Learner's Dictionary © Cambridge University Press)

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