verb (used with object), com·mu·ni·cat·ed, com·mu·ni·cat·ing.

  1. to impart knowledge of; make known: to communicate information; to communicate one’s happiness.
  2. to give to another; impart; transmit: to communicate a disease.
  3. to administer the Eucharist to.
  4. Archaic. to share in or partake of.

verb (used without object), com·mu·ni·cat·ed, com·mu·ni·cat·ing.

  1. to give or interchange thoughts, feelings, information, or the like, by writing, speaking, etc.: They communicate with each other every day.
  2. to express thoughts, feelings, or information easily or effectively.
  3. to be joined or connected: The rooms communicated by means of a hallway.
  4. to partake of the Eucharist.
  5. Obsolete. to take part or participate.


  1. to impart (knowledge) or exchange (thoughts, feelings, or ideas) by speech, writing, gestures, etc
  2. (tr usually foll by to) to allow (a feeling, emotion, etc) to be sensed (by), willingly or unwillingly; transmit (to)the dog communicated his fear to the other animals
  3. (intr) to have a sympathetic mutual understanding
  4. (intr usually foll by with) to make or have a connecting passage or route; connect
  5. (tr) to transmit (a disease); infect
  6. (intr) Christianity to receive or administer Communion

v.1520s, “to impart” (information, etc.), from Latin communicatus, past participle of communicare “impart, inform” (see communication). Meaning “to share, transmit” (diseases, etc.) is from 1530s. Related: Communicated; communicating.

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