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double check

noun, Chess.
1.
a simultaneous check by two pieces in which the moving of one piece to give check also results in discovering a check by another piece.

double-check

[duhb-uh l-chek] /ˈdʌb əlˈtʃɛk/
verb (used with object), verb (used without object)
1.
to check twice or again; recheck.
noun
2.
a second examination or verification to assure accuracy, proper functioning, or the like.
Origin of double-check
1950-1955
1950-55, Americanism
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for double check

double-check

verb
1.
to check twice or again; verify
noun
2.
a second examination or verification
3.
(chess) a simultaneous check from two pieces brought about by moving one piece to give check and thereby revealing a second check from another piece
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for double check

double-check

v.

1958, from double (adj.) + check (v.). Related: Double-checked; double-checking.

Online Etymology Dictionary, © 2010 Douglas Harper
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Word Value for double

9
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