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Valid in these dictionaries

TWL/NWL (Scrabble US/CA/TH)
SOWPODS/CSW (Scrabble UK / ALL)
ENABLE (Words with Friends)

Meaning of operation

1 definition found

From WordNet (r) 3.0 (2006) [wn]:

  operation
      n 1: the state of being in effect or being operative; "that rule
           is no longer in operation"
      2: a business especially one run on a large scale; "a large-
         scale farming operation"; "a multinational operation"; "they
         paid taxes on every stage of the operation"; "they had to
         consolidate their operations"
      3: a planned activity involving many people performing various
         actions; "they organized a rescue operation"; "the biggest
         police operation in French history"; "running a restaurant is
         quite an operation"; "consolidate the companies various
         operations"
      4: (computer science) data processing in which the result is
         completely specified by a rule (especially the processing
         that results from a single instruction); "it can perform
         millions of operations per second"
      5: activity by a military or naval force (as a maneuver or
         campaign); "it was a joint operation of the navy and air
         force" [syn: {operation}, {military operation}]
      6: a medical procedure involving an incision with instruments;
         performed to repair damage or arrest disease in a living
         body; "they will schedule the operation as soon as an
         operating room is available"; "he died while undergoing
         surgery" [syn: {operation}, {surgery}, {surgical operation},
         {surgical procedure}, {surgical process}]
      7: a process or series of acts especially of a practical or
         mechanical nature involved in a particular form of work; "the
         operations in building a house"; "certain machine tool
         operations" [syn: {operation}, {procedure}]
      8: process or manner of functioning or operating; "the power of
         its engine determines its operation"; "the plane's operation
         in high winds"; "they compared the cooking performance of
         each oven"; "the jet's performance conformed to high
         standards" [syn: {operation}, {functioning}, {performance}]
      9: (psychology) the performance of some composite cognitive
         activity; an operation that affects mental contents; "the
         process of thinking"; "the cognitive operation of
         remembering" [syn: {process}, {cognitive process}, {mental
         process}, {operation}, {cognitive operation}]
      10: (mathematics) calculation by mathematical methods; "the
          problems at the end of the chapter demonstrated the
          mathematical processes involved in the derivation"; "they
          were learning the basic operations of arithmetic" [syn:
          {mathematical process}, {mathematical operation},
          {operation}]
      11: the activity of operating something (a machine or business
          etc.); "her smooth operation of the vehicle gave us a
          surprisingly comfortable ride"

Source : WordNet ® Princeton University. 2010.

Use this dictionary checker to learn more about a word - find out its meaning and also make sure whether that word is a valid word in any of these dictionaries (used by popular word games). Here is the list of dictionaries it checks for :

OCTWL / TWL : The official dictionary for scrabble game in United States, Canada and Thailand.
SOWPODS / CSW : UK and the rest of the world uses this dictionary for various word games including scrabble.
ENABLE - This is the default dictionary for Words with Friends.

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