Schlüssel

Key called:

• Key, a device for opening a lock
• Identification keys, a system for accurate determination or classification of living things, minerals, or the like
• Wrench, a hand tool
• Allen wrench, wrench for screws with hexagon socket in the screw head
• Key ( cryptography ), information to encrypt or decrypt a message

In computer science:

• An identification with the objects can be clearly identified, see Numbering
• Key (database), a designation that can be identified with the data clearly

In the culture:

• Key (heraldry ), a common figure in heraldry
• Clef, in music
• The key is a novel by Tanizaki Jun'ichirô (1956 )

See also:

• Disambiguation