from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Considerable acquaintance with.
  • n. Established friendship; intimacy.
  • n. An excessively familiar or informal act; an impropriety.
  • n. A sexual advance.
  • n. The quality or condition of being familiar.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The state of being extremely friendly; intimacy.
  • n. Undue intimacy; inappropriate informality, impertinence.
  • n. An instance of familiar behaviour.
  • n. Close or habitual acquaintance with someone or something; understanding or recognition acquired from experience.

from the GNU version of the Collaborative International Dictionary of English

  • n. The state of being familiar; intimate and frequent converse, or association; unconstrained intercourse; freedom from ceremony and constraint; intimacy.
  • n. Anything said or done by one person to another unceremoniously and without constraint; esp., in the pl., such actions and words as propriety and courtesy do not warrant; liberties.

from The Century Dictionary and Cyclopedia

  • n. The state of being familiar, in any sense of that word; intimate knowledge; close or habitual acquaintance; free or unrestrained intercourse: followed by with before an object.
  • n. An unusual liberty in act or speech from one person toward another; a freedom of conduct justified only by the most intimate relations, or exercised without warrant; an act of personal license, in either a good or a bad sense: most frequently in the plural: as, the familiarities of intimate friendship; his familiarities were repulsive.
  • n. In astrol., any kind of aspect or reception.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. close or warm friendship
  • n. personal knowledge or information about someone or something
  • n. a casual manner
  • n. an act of undue intimacy
  • n. usualness by virtue of being familiar or well known


From Middle French familiarité, from Latin familiāritātem. (Wiktionary)



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