English vocabulary · C1
Substantiate
/səbˈstæn.ʃi.eɪt/ · v.
To substantiate an idea, you show facts that make it clear the idea is true. Those facts give it a firm base.
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Example sentences
- Video substantiates her claim.
- Fresh tracks substantiate the guide's warning.
Word origin and roots
from Latin
- sub — under (from Latin)
- stant — stand (from Latin)
Synonyms and nuances
- PROVE — show truth clearly (Show It Is True)
- VERIFY — check that it is true (Check Against Facts)
- SUPPORT — give facts behind an idea (Add Helpful Facts)
Words with the same root
stant — stand
- constant — staying the same
- instant — a very short moment
- substance — material something is made from
Lesson notes
To substantiate an idea, you show facts that make it clear the idea is true. Those facts give it a firm base.
Related: prove, verify, support. Use substantiate when facts make claims true.
Video substantiates her claim. Fresh tracks substantiate the guide's warning.
From Latin. Sub- means under. Stant- means stand. Facts stand under a claim and substantiate it.