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1.
To make briefer, shorten.

Abbreviation for abbreviate is Abbr.
Abbreviate is such a long word for what it means.
by LarstaiT November 10, 2003
29 6
 
2.
To shorten a sentence, for instance LOL is short for Laugh Out Loud.
Same as FYI is short for For Your Information and etc etc etc

Stuff like that are ALL abbreviations.
LOL, LMAO, ILY and more are all abbreviations.

DNA = Do Not Abbreviate

Even though I do it...LOTS
by Your Bloody Valentine October 01, 2007
9 7