What does "modifier key" mean?

A key (on a computer keyboard) that may be pressed simultaneously with certain other keys to activate predefined functions.

What is a synonym for "modifier key"?

Common synonyms include: alt, function key.

noun

noun ·Rare ·Advanced level

Noun

1
A key (on a computer keyboard) that may be pressed simultaneously with certain other keys to activate predefined functions.
"Ctrl, Alt, and Shift are the modifier keys on a typical modern keyboard."

"Ctrl, Alt, and Shift are the modifier keys on a typical modern keyboard."