a small piece of shaped metal with incisions cut to fit the wards of a particular lock, and that is inserted into a lock and turned to open or close it.
In the recovery room and three theatres, the drugs cupboards had been opened using force and the metal cupboards inside had been opened with keys .
each of several buttons on a panel for operating a computer, typewriter, or telephone.
The participants initiated the trials by pressing any of the keys on the computer keyboard.
a thing that provides a means of gaining access to or understanding something.
the key to Jack's behavior may lie submerged in his unhappy past
a group of notes based on a particular note and comprising a scale, regarded as forming the tonal basis of a piece or passage of music.
the key of E minor
the dry winged fruit of an ash, maple, or sycamore maple, typically growing in bunches; a samara.
Visitors were not allowed to use pens or pencils but to use other media such as twigs, sycamore keys and string, among other things, with Indian ink to make marks.