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English definition of “sustenance”

sustenance

noun [U] uk   /ˈsʌs.tɪ.nəns/ formal us  

sustenance noun [U] (FOOD)

food: During this freezing weather, the food put out by householders is the only form of sustenance that the birds have.Food - general words the ability of food to provide people and animals with what they need to make them strong and healthy: A stick of celery does not provide much sustenance.Food - general words

sustenance noun [U] (SUPPORT)

emotional or mental support: When her husband died, she drew sustenance from/she found sustenance in her religious beliefs.Backing, supporting and defendingDefending and protecting
(Definition of sustenance from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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