alt

A modifier key on a computer keyboard, often used with other keys.

"Press Alt and F4 to close the window."

Short for alto, referring to a vocal range or musical instrument.

"The alt saxophone section played beautifully."

A genre, subculture, or political movement considered alternative or non-mainstream.

"She prefers alt to mainstream pop music."

An alternative or secondary online account or character, especially in gaming.

"He uses an alt to play with lower-level friends."