[si-non-uh-muh s]


having the character of synonyms or a synonym; equivalent in meaning; expressing or implying the same idea.

Nearby words

  1. synonym,
  2. synonym dictionary,
  3. synonymist,
  4. synonymity,
  5. synonymize,
  6. synonymously,
  7. synonyms,
  8. synonymy,
  9. synop.,
  10. synophthalmia

Origin of synonymous

1600–10; < Medieval Latin synōnymus < Greek synṓnymos, equivalent to syn- syn- + -ōnym- -onym + -os adj. suffix; see -ous

Related forms Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for synonymous

British Dictionary definitions for synonymous



(often foll by with) being a synonym (of)
(postpositive foll by with) closely associated (with) or suggestive (of)his name was synonymous with greed
Derived Formssynonymously, adverbsynonymousness, noun

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 synonymous



c.1600, from Medieval Latin synonymus, from Greek synonymos (see synonym). Related: Synonymously.

Online Etymology Dictionary, © 2010 Douglas Harper