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1. In music, short for Alternative.

2. In RPG, short for Alternate ID.

3. In MPD, short for alter or persona.

4. In keyboarding, the Alt key, located just to the left of the space bar.

5. In HTML, the alternative text attribute of the img tag.
1. I don't care for Alt Music.

2. My Alt is Downstrike.

3. I tried to list my alts once, but I lost count at 44.

4. The reason you don't see Alt is it's hidden under your left hand.

5. There's no such thing as an "alt tag". Alt is an attribute of the img tag.
by Downstrike January 28, 2006
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2
In MMPORGS like MUDs, a reference to a player's supplementary--thus "alternative"--avatar/character. Not the player's primary character but one used for blowing off steam, avoiding a primary character's responsibilities, or exacting anonymous revenge on a player-character you dislike.
I logged on with my alt after PKing him cuz I didn't want him to gank me.
by Werttrew July 03, 2004
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3
gaming: An alternative character, as opposed to one main character you play in a game. Many online games allow the user to make multiple characters. People that make alts to an extreme are said to be altoholics.
XxLord Dark Evil BlacknessxX: Hey, any1 got a healer? we rly culd youz a healr on this mish.
Mistress Dark Blood Necro Fairy: Ya, i kan log onto 1 of mai alts, brb.
by Scott Trowbridge August 06, 2008
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4
And Alt is an account that is made by the same user of another account and pretends to be someone different. It is usually made to start drama in communities such as fandom and sometimes reddit. They are usually banned by admins on wikis for causing drama and being mean to other users. When their acc is banned they make another acc. This is quite a hassle for admins and they usually ban the IP Adress for all acc’s in the area the alt maker is are blocked. They usually use hacking to get to make these acc’s or to make it seem like other users made the alt when in reality the blocked user is. They usually make acc’s knowing that they will be blocked just to send an offensive message on another users message wall or in the blog posts. They scam and cause trouble for no reason. They are not liked. Being accused of making an alt is tooken to extreme offence. Famous examples of alt makers are ILR (AKA IloveRumania), TLR (AKA TehLoanRanger), TBB, and formerly IILWP (AKAIminlovewithpolandball)
User: Hey admin come check this new user out he’s been up to some trouble in the blog posts

Admin: ok, he might be an ILR alt
via giphy
by Да June 27, 2018
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"What happened to that guy you were seeing? You guys went on a couple dates, right?"

"Yeah, he stopped calling me. Guess he wasn't ALT."
by Morpho October 09, 2013
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6
An abreviation for the word "Alternative" meaning the type of music.
Kait's favorite music is alt-rock.
by Bey April 21, 2003
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