A numeric keypad with 16 keys



  • An object designed to open and close a lock.
  • An object designed to fit between two other objects (such as a shaft and a wheel) in a mechanism and maintain their relative orientation.
  • A crucial step or requirement.
  • A guide explaining the symbols or terminology of a map or chart; a legend.
  • A guide to the correct answers of a worksheet or test.
  • One of several small, usually square buttons on a typewriter or computer keyboard, mostly corresponding to text characters.
  • The general pitch or tone of a sentence or utterance.
  • A modification of an advertisement so as to target a particular group or demographic.
  • An indehiscent, one-seeded fruit furnished with a wing, such as the fruit of the ash and maple; a samara.
  • A manual electrical switching device primarily used for the transmission of Morse code.
  • A piece of information (e.g. a passphrase) used to encode or decode a message or messages.
  • A password restricting access to an IRC channel.
  • In a relational database, a field used as an index into another table (not necessarily unique).
  • A value that uniquely identifies an entry in a container.
  • The free-throw lane together with the circle surrounding the free-throw line, the free-throw lane having formerly been narrower, giving the area the shape of a skeleton key hole.
  • A series of logically organized groups of discriminating information which aims to allow the user to correctly identify a taxon.
  • A piece of wood used as a wedge.
  • The last board of a floor when laid down.
  • A keystone.
  • That part of the plastering which is forced through between the laths and holds the rest in place.
  • A wooden support for a rail on the bullhead rail system.
  • The degree of roughness, or retention ability of a surface to have applied a liquid such as paint, or glue.
  • The thirty-third card of the Lenormand deck.
  • The black ink layer, especially in relation to the three color layers of cyan, magenta, and yellow. See also CMYK.
  • A color to be masked or made transparent.
  • One of a string of small islands.
  • Alternative of quay.
  • Short form of kilogram (especially of a recreational drug)



  • To fit (a lock) with a key.
  • To fit (pieces of a mechanical assembly) with a key to maintain the orientation between them.
  • To mark or indicate with a symbol indicating membership in a class.
  • To depress (a telegraph key).
  • To operate (the transmitter switch of a two-way radio).
  • (more usually to key in) To enter (information) by typing on a keyboard or keypad.
  • To vandalize (a car, etc.) by scratching with an implement such as a key.
  • To link (as one might do with a key or legend).
  • To be identified as a certain taxon when using a key.
  • To modify (an advertisement) so as to target a particular group or demographic.
  • To attune to; to set at; to pitch.
  • To fasten or secure firmly; to fasten or tighten with keys or wedges.


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