[ suhb-stan-shee-eyt ]
See synonyms for: substantiatesubstantiatedsubstantiating on

verb (used with object),sub·stan·ti·at·ed, sub·stan·ti·at·ing.
  1. to establish by proof or competent evidence: to substantiate a charge.

  2. to give substantial existence to: to substantiate an idea through action.

  1. to affirm as having substance; give body to; strengthen: to substantiate a friendship.

Origin of substantiate

First recorded in 1650–60; from New Latin substantiātus (past participle of substantiāre ), equivalent to Latin substanti(a) substance + -ātus -ate1

Other words for substantiate

Other words from substantiate

  • sub·stan·ti·a·ta·ble [suhb-stan-shee-eyt-uh-buhl] /səbˌstæn ʃiˈeɪt ə bəl/ adjective
  • sub·stan·ti·a·tion [suhb-stan-shee-ey-shuhn], /səbˌstæn ʃiˈeɪ ʃən/, noun
  • sub·stan·ti·a·tive, adjective
  • sub·stan·ti·a·tor, noun
  • re·sub·stan·ti·ate, verb (used with object), re·sub·stan·ti·at·ed, re·sub·stan·ti·at·ing.
  • un·sub·stan·ti·at·a·ble, adjective

Words Nearby substantiate Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use substantiate in a sentence

British Dictionary definitions for substantiate


/ (səbˈstænʃɪˌeɪt) /

  1. to establish as valid or genuine

  2. to give form or real existence to

Origin of substantiate

C17: from New Latin substantiāre, from Latin substantia substance

Derived forms of substantiate

  • substantiation, noun
  • substantiative, adjective
  • substantiator, 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