operation operation  /ˌɑ pə ˈreɪ ʃən/


  1. (n) the state of being in effect or being operative
  2. (n) a business especially one run on a large scale
  3. (n) a planned activity involving many people performing various actions
  4. (n) (computer science) data processing in which the result is completely specified by a rule (especially the processing that results from a single instruction)
  5. (n) activity by a military or naval force (as a maneuver or campaign)
  6. (n) a medical procedure involving an incision with instruments; performed to repair damage or arrest disease in a living body
  7. (n) a process or series of acts especially of a practical or mechanical nature involved in a particular form of work
  8. (n) process or manner of functioning or operating
  9. (n) (psychology) the performance of some composite cognitive activity; an operation that affects mental contents
  10. (n) (mathematics) calculation by mathematical methods
  11. (n) the activity of operating something (a machine or business etc.)


  1. The operation, conducted by CIA alchemists from 1954 until 1963, was part of a quarter-century hunt for a psychogenic philosophers' stone.
  2. The male-to-female operation, which costs from $3,000 to $5,000, is by far the easier and more satisfactory.
  3. Throughout the operation, Palestinian officials had said that as many as 800 had been killed.


  1. Operation Oshkosh: Enchanting Decor & Gifts

    This week the crew at Operation Oshkosh visits Enchanting Decor & Gifts, an Oregon Street store with all types of furniture and accessories for your home.
    on June 19, 2013     Source: The Oshkosh Northwestern

  2. Operation Border to Border Yields 1,000+ Arrests, Summonses

    Six state police and highway patrol agencies spent June 7 through June 9 enforcing Operation Border to Border along U.S. Route 15.
    on June 19, 2013     Source: NBC 29 Charlottesville

  3. Operation Facelift Getting Bigger In Kimberly

    Kimberly, Idaho ( KMVT-TV / KTWT-TV ) Operation Facelift is up and running. The city of Kimberly already has 20 projects under its belt. Now it's tackling a bigger job with more volunteers.
    on June 18, 2013     Source: KMVT Twin Falls


  1. "On this important endeavour, co-operation is not optional," Petraeus added.
    on Jul 3, 2010 By: David Petraeus Source: Sydney Morning Herald

  2. "The Taliban know that Kandahar is the key to success or failure," McCain told a news conference at the airport in Kabul. "So what happens in this operation will have a great effect on the outcome of this conflict. But I am convinced we can...
    on Jul 5, 2010 By: John McCain Source: The Associated Press

  3. Speaking in Jordan before returning to Sri Lanka, President Rajapaksa said: "My government, with the total commitment of our armed forces, has in an unprecedented humanitarian operation finally defeated the LTTE militarily. I will be going back to a...
    on May 16, 2009 By: Mahinda Rajapakse Source: BBC News

Word of the Day
decadent decadent
/ˈdɛ kə dənt /