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The meaning of the Acronym 21 is...
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ASCII Character Codes
21
21 is
NAK ( Negative Acknowledgement)
More Meanings For 21:
NAK ( Negative Acknowledgement)
Karachi City Code
21 is also in:
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Acronym Definition Searched:
NIT
RIMS
TIDE
TKT
ASC
UEI
QCK
SRF
DOD
SCOM
RBAC
COTAR
SUP
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HLBC
