[ suhb-stan-shee-eyt ]
/ səbˈstæn ʃiˌeɪt /
Save This Word!
See synonyms for: substantiate / substantiated on Thesaurus.com

verb (used with object), sub·stan·ti·at·ed, sub·stan·ti·at·ing.

to establish by proof or competent evidence: to substantiate a charge.
to give substantial existence to: to substantiate an idea through action.
to affirm as having substance; give body to; strengthen: to substantiate a friendship.



Apostrophes can be tricky; prove you know the difference between it’s and its in this crafty quiz!
Question 1 of 12
On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.

Origin of substantiate

First recorded in 1650–60; from New Latin substantiātus (past participle of substantiāre), equivalent to Latin substanti(a) substance + -ātus -ate1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for substantiate

/ (səbˈstænʃɪˌeɪt) /

verb (tr)

to establish as valid or genuine
to give form or real existence to
substantiation, nounsubstantiative, adjectivesubstantiator, noun
C17: from New Latin substantiāre, from Latin substantia substance
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
Get Online Help For Kids!