/səbˈstænʃieɪtˈ/ – verb
Definition: chứng minh, biện luận.
A more thorough explanation: To substantiate means to provide evidence or proof to support or prove the truth of a claim, statement, or argument. It involves presenting facts, documents, or other forms of evidence to establish the validity or truthfulness of a particular assertion.
Example: The witness was able to substantiate her claim with concrete evidence and testimony.