• synonyms


  1. having personal knowledge as a result of study, experience, etc.; informed (usually followed by with): to be acquainted with law.
  2. brought into social contact; made familiar: people acquainted through mutual friends.
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Origin of acquainted

Middle English word dating back to 1250–1300; see origin at acquaint, -ed2
Related formsac·quaint·ed·ness, nounhalf-ac·quaint·ed, adjectivequa·si-ac·quaint·ed, adjectiveun·ac·quaint·ed, adjectivewell-ac·quaint·ed, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for well-acquainted


adjective (well acquainted when postpositive)
  1. having a good knowledge or understanding of someone or somethingwell acquainted with Milton
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adjective (postpositive)
  1. (sometimes foll by with) on terms of familiarity but not intimacy
  2. (foll by with) having knowledge or experience (of); familiar (with)
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for well-acquainted



early 13c., "personally known;" past participle adjective from acquaint (v.). Of skills, situations, etc., from late 15c.

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Online Etymology Dictionary, © 2010 Douglas Harper