verb · 6 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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Received-Pronunciation:/səbˈstænʃieɪt/
Received-Pronunciation:/səbˈstanʃɪeɪt/
Southern-England:Recorded audio is listed in the source snapshot.
Canada, General-American:/səbˈstænʃiˌeɪt/
Canada, General-American:[səbˈstɛənʃiˌeɪt]
Australian:/səbˈstænʃiæɪt/
CMU ARPABET:S AH0 B S T AE1 N CH IY0 EY2 T
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
CMU ARPABET 2:S AH0 B S T AE1 N SH IY0 EY2 T
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
verb
Meaning 1
To verify something by supplying evidence; to authenticate or corroborate.
Definition source: English Wiktionary via Wiktextract
Usage: transitive
Examples
substantiate allegations
substantiate a claim
The lawyer was asked to substantiate her claims.
He could not substantiate the rumors with evidence.
Meaning relationships
Synonyms: vouch
Antonyms: none provided
2
verb
Meaning 2
To give material form or substance to something; to embody; to record in documents
Definition source: English Wiktionary via Wiktextract
Usage: transitive
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
verb
Meaning 3
solidify, firm, or strengthen
Definition source: Princeton WordNet 3.0
Examples
The president's trip will substantiate good relations with the former enemy country
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: strengthen, beef up, fortify
4
verb
Meaning 4
establish or strengthen as with new evidence or facts
