1. the act or state of touching; a touching or meeting, as of two things or people.
  2. immediate proximity or association.
  3. an acquaintance, colleague, or relative through whom a person can gain access to information, favors, influential people, and the like.
  4. Electricity. a junction of electric conductors, usually metal, that controls current flow, often completing or interrupting a circuit.
  5. Geology. the interface, generally a planar surface, between strata that differ in lithology or age.
  6. Medicine/Medical. a person who has lately been exposed to an infected person.
  7. Sociology. a condition in which two or more individuals or groups are placed in communication with each other.Compare categoric contact, primary contact, secondary contact, sympathetic contact.
  8. contact lens.

verb (used with object)

  1. to put or bring into contact.
  2. to communicate with: We’ll contact you by mail or telephone.

verb (used without object)

  1. to enter into or be in contact.


  1. involving or produced by touching or proximity: contact allergy.

noun (ˈkɒntækt)

  1. the act or state of touching physically
  2. the state or fact of close association or communication (esp in the phrases in contact, make contact)
    1. a junction of two or more electrical conductors
    2. the part of the conductors that makes the junction
    3. the part of an electrical device to which such connections are made
  3. an acquaintance, esp one who might be useful in business, as a means of introduction, etc
  4. any person who has been exposed to a contagious disease
  5. photog See contact print
  6. (usually plural) an informal name for contact lens
  7. (modifier) of or relating to irritation or inflammation of the skin caused by touching the causative agentcontact dermatitis
  8. (modifier) denoting an insecticide or herbicide that kills on contact, rather than after ingestion or absorption
  9. (modifier) of or maintaining contact
  10. (modifier) requiring or involving (physical) contactthe contact sport of boxing

verb (ˈkɒntækt, kənˈtækt)

  1. (when intr, often foll by with) to put, come, or be in association, touch, or communication


  1. aeronautics (formerly) a call made by the pilot to indicate that an aircraft’s ignition is switched on and that the engine is ready for starting by swinging the propeller

n.1620s, “action of touching,” from Latin contactus “a touching,” from past participle of contingere “to touch, seize,” from com- “together” (see com-) + tangere “to touch” (see tangent). Figurative sense of “connection, communication” is from 1818. As a signal to the person about to spin an aircraft propeller that the ignition is switched on, the word was in use by 1913. Contact lens is first recorded 1888; short form contact is from 1961. v.1834, “put in contact,” from contact (n.). Meaning “get in touch with” is 1927, American English. Related: Contacted; contacting. n.

  1. A coming together or touching, as of bodies or surfaces.
  2. A person recently exposed to a contagious disease, usually through close association with an infected individual.


  1. To bring, be, or come in contact.


  1. Of, sustaining, or making contact.
  2. Caused or transmitted by touching, as a rash.

  1. Electricity
    1. A connection between two conductors that allows an electric current to flow.
    2. A part or device that makes or breaks a connection in an electrical circuit.
  2. Geology The place where two different types of rock, or rocks of different ages, come together.

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