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Definition of Fort Knox noun from the Oxford Advanced Learner's Dictionary

Fort Knox

noun

/ˌfɔːt ˈnɒks/

/ˌfɔːrt ˈnɑːks/

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Idioms

be like/as safe as Fort Knox

(of a building) to be strongly built, often with many locks, strong doors, guards, etc., so that it is difficult for people to enter and the things kept there are safe
- This home of yours is like Fort Knox.
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See Fort Knox in the Oxford Advanced American Dictionary

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Nearby words

noun

From the Word list

B2

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