Common Abbreviations

Can you define these commonly used abbreviations?

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Last updated: February 4, 2026

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Hint	Answer
ATM	automatic teller machine
PSI	pounds per square Inch
CC	carbon copy
PIN	personal identification number
NASA	national aeronautics space administration
TSA	transportation security administration
NATO	north atlantic treaty organization

Hint	Answer
VPN	virtual private network
GMO	genetically modified organism
BCE	before common era
PS	post script
PVC	polyvinyl chloride
HR	human resources
FBI	federal bureau investigations

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1 Comments

Level 68

Jan 28, 2026

National aeronautics and space administration.