Twitter-format(7)

RT Short for “Retweet.” This is even sometimes spelled out instead of abbreviated. via Similar to HT or MRT (below), via has lately simply become more of a catchall, often seen simply as an alternative to using “RT.” But ideally, it indicates a modified tweet.

HT “Hat tip” This is a way of thanking the person who brought something to your attention. It’s sometimes used interchangeably with MRT (see #3 below).

MRT or MT Short for “Modified (re)tweet,” this usually indicates that you’ve edited the retweet a little, otherwise only a very small amount of editing can justify sticking with a regular “RT.”

IRT Short for “In reply to” or “In response to” (or very rarely “Ironic Retweet”).

OH “Overheard.” Similar to HT if attributing to a specific Twitter username. Otherwise, just another popular Twitter acronym

/by The preferred method for author attribution. Sometimes used with no slash, e.g. “Great article by @user”

/cc This is just a way of including another username in a tweet so they will be notified of it. It comes from the email cc standard to send a “copy” of the email to another person. “CC” originally stood for “carbon copy,” coming from the old business letter-writing standard. Also commonly used with no slash, e.g. “I love this pic [link] cc @user1, @user2″

ta (British) or Ty (American) is slang for “Thank you” that some use: “[Tweet text and link, if any] ta @user”

QT Means “quoted tweet,” favored by Japanese Twitter users.

Example: https://twitter.com/bing/status/1955295086 https://twitter.com/bing (the bio mentions ^nb and ^nm)

The ones that start with "d @username" or "dm @username"