function key(redirected from F4 Key)
Also found in: Encyclopedia.
Related to F4 Key: F5 Key
One of a set of keys on a computer keyboard that execute a function within a given application and are usually numbered 1 through 12.
(Computer Science) computing a key on the keyboard of a microcomputer, etc. that gives special commands to the computer
a key on a computer keyboard used alone or with other keys for operations.