the activity of operating something (a machine or business etc.); "her smooth operation of the vehicle gave us a surprisingly comfortable ride"
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"
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"
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"
activity by a military or naval force (as a maneuver or campaign); "it was a joint operation of the navy and air force"
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"
(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"
process or manner of functioning or operating; "the power of its engine determine 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"
the state of being in effect or being operative; "that rule is no longer in operation"
a conference between two or more people to consider a particular question; "frequent consultations with his lawyer"; "a consultation of several medical specialists"
a conference (usually with someone important); "he had a consultation with the judge"; "he requested an audience with the king"
the sensation produced by low temperatures; "he shivered from the cold"; "the cold helped clear his head"
a mild viral infection involving the nose and respiratory passages (but not the lungs); "will they never find a cure for the common cold?"
lacking the warmth of life; "cold in his grave"
of a seeker; far from the object sought
unconscious from a blow or shock or intoxication; "the boxer was out cold"; "pass out cold"
feeling or showing no enthusiasm; "a cold audience"; "a cold response to the new play"
having lost freshness through passage of time; "a cold trail"; "dogs attempting to catch a cold scent"
used of physical coldness; having a low or inadequate temperature or feeling a sensation of coldness or having been made cold by e.g. ice or refrigeration; "a cold climate"; "a cold room"; "dinner has gotten cold"; "cold fingers"; "if you are cold, turn up the heat"; "a cold beer"
extended meanings; especially of psychological coldness; without human warmth or emotion; "a cold unfriendly nod"; "a cold and unaffectionate person"; "a cold impersonal manner"; "cold logic"; "the concert left me cold"
without compunction or human feeling; "in cold blood"; "cold-blooded killing"; "insensate destruction"
sexually unresponsive; "was cold to his advances"; "a frigid woman"
so intense as to be almost uncontrollable; "cold fury gripped him"
no longer new; uninteresting; "cold (or stale) news"
marked by errorless familiarity; "had her lines cold before rehearsals started"
(color) giving no sensation of warmth; "a cold bluish grey"