Transportation

the DMV – Department of Motor Vehicles
SUV – sport utility vehicle
DUI – driving under the influence
DWI – driving while intoxicated

 

Military

MIA – missing in action
POW – prisoner of war
AWOL – absent without leave
DOA – dead on arrival

 

Chat Abbreviations

BRB – be right back
NSFW – not safe for work
OMG – oh my God
IDK – I don’t know
TY – thank you
NP – no problem
LOL – laughing out loud
AFK – away from computer

 

Other

a.m./p.m. – ante meridiem, post meridiem (a.m. = morning, p.m. = afternoon)
am/fm – amplitude modulation, frequency modulation (radio signals)
BC/AD – before Christ, anno domini (BC = before the birth of Jesus, AD = after the birth of Jesus)
RSVP – répondez s’il vous plaît (French for “please reply”)
ASAP – as soon as possible
Note that we can say this as if it were a word, or we can say each individual letter. It’s pronounced /eɪsæp/ when said as a word.
info – information
ATM – automated teller machine
ID – identification
IQ – intelligence quotient
ETA – estimated time of arrival
UFO – unidentified flying object
BYOB – bring your own bottle
PC – personal computer
FYI – for your information
AKA – also known as
Q&A – question and answer
FAQ – frequently asked question
VIP – very important person
e.g. – example given
i.e. – id est (Latin for “in other words” or “that is to say”)
EST – Eastern Standard Time
CST – Central Standard Time
PST – Pacific Standard Time
TBD – to be determined
TBA – to be announced
PS – post script (used at the end of a letter before communicating additional information)
MO – modus operandi (the way someone usually operates)
R&R – rest and relaxation
DIY – do it yourself
DOB – date of birth (often found on forms and other official documents)
SSN – Social Security number (often found on forms and other official documents)