Englishfor English speakers
lose
Verb
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When you lose something, you don't know where it is.
The boy lost his book some place between home and school.
The man has lost his keys and was locked out of the house.
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In games, you lose when others do better than you.
He lost the card game because he didn't know the rules.
marbles
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noun
a children's game played with little balls made of a hard substance (as glass)
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noun
(= wits)
the basic human power of intelligent thought and perception
he used his wits to get ahead
I was scared out of my wits
he still had all his marbles and was in full possession of a lively mind