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counteract
counterargument
counterattack
counterattraction
counterbalance
counterbattery fire
counterblast
counterchange
countercharge
countercheck
counterclaim
counterclockwise
counterconditioning
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counterdemonstration
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countdown

count·down [ kównt dòwn ] (plural count·downs)


noun 
Definition:
 
1. backward count: a count in descending order before an event such as a rocket launch

2. activities before event: the activities carried on during the period of time before something such as a rocket launch

3. preparatory period: the period immediately preceding an important event

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