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Word Search :
air sac

n.
1.a tiny sac for holding air in the lungs
2.any of the thin-walled extensions of the tracheae of insects
3.any of the membranous air-filled extensions of the lungs of birds

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Word of the Day

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  • air sickness
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  • mystify
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    Idiom of the Day

    vote down (something) or vote (something) down
    to defeat something in a vote
    The proposal to extend the opening hours of nightclubs was voted down in the election.



    1.
    It's always darkest before the ________

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