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English definition of “custodian”

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custodian

noun [C]
 
 
/kʌsˈtəʊdiən/
VALUABLE THING formal a person who takes care of something valuable or important: He's the grandson of Oscar Wilde and custodian of his private papers.Protection and protectorsEnvironmental issues
BUILDING US someone whose job is to look after a building, especially a schoolOccupations and tradesProtection and protectorsEnvironmental issues
(Definition of custodian from the Cambridge Learners Dictionary © Cambridge University Press)
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