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cheat
cheat code
Chechen
Chechnya
check
check box
check-by-phone
check dam
check digit
check in
check-in
check-in kiosk
check into
check mark
check off
check out
check over
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check digit
check dig·it (plural check digits)


noun 
Definition:
 
digit used for validation: in computing, a digit derived from and added to the other digits in a sequence, used to ensure that the sequence is correct
Encarta® World English Dictionary [North American Edition] © & (P)2007 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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