Twitter, on account of the 140 character limit, encourages extensive use of shorthand typing. Most of these acronyms might be familiar to regular Internet users but some are very specific to Twitter.

Here is a list of top Twitter acronyms that we know so far.

RT = Retweet.

PRT = Partial Retweet / Please Retweet.

OH = Overheard.

DM = Direct Message.

@ : Reply to [username].

BTW : By The Way

FTW = For The Win.

FTL = For The Loss.

IRL = In Real Life.

FTF = Face to Face.

IMHO = In My Honest Opinion.

YMMV = Your Mileage May Vary.

BR = Best Regards.

b/c = because.

JV = Joint Venture.

LMK = Let Me Know.

Also see: Twitter Guide: How To Do Things With Twitter