Key may refer to:
- Key (lock), device used to open a lock or door
- Skeleton key or master key, a key altered to bypass wards placed inside a lock
- Key (chart), a guide to colours and symbols used in a data chart, graph, plot or diagram
- Key (cryptography), a piece of information that controls the operation of a cryptography algorithm
- Key (engineering), a type of coupling used to transmit rotation between a shaft and an attached item
- Key (map), a guide to a map's symbology
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Famous quotes containing the word key:
“Now narrow minds can develop as well through persecution as through benevolence; they can assure themselves of their power by tyrannizing cruelly or beneficently over others; they go the way their nature guides them. Add to this the guidance of interest, and you will have the key to most social riddles.”
—Honoré De Balzac (1799–1850)
“They have thrown away her electric toothbrush, someone else slips
The key into the lock of her safety-deposit box
At the Crocker-Anglo Bank; her seat at the cricket matches
Is warmed by buttocks less delectable than hers.”
—Randall Jarrell (1914–1965)
“Power, in Case’s world, meant corporate power. The zaibatsus, the multinationals ..., had ... attained a kind of immortality. You couldn’t kill a zaibatsu by assassinating a dozen key executives; there were others waiting to step up the ladder; assume the vacated position, access the vast banks of corporate memory.”
—William Gibson (b. 1948)