Definition of Substantiate

to prove the truth of something

Examples of Substantiate in a sentence

To get a good grade on the research project, you must substantiate your report with provable facts.  🔊

How do you plan to substantiate your right to inherit the billionaire’s fortune?  🔊

Even though the defendant could not substantiate his alibi for the night of the murder, he was still found innocent of all charges.  🔊

The nosey old lady was unable to substantiate the allegation her neighbors were drug dealers.  🔊

If you do not substantiate your scientific theories with facts, the members of the scientific community will disregard all your ideas.  🔊

The reporter could not publish his article because he was unable to substantiate the stories of his confidential source.  🔊

Since Jason did not take a picture of the spaceship, he cannot substantiate his claim of a UFO sighting.  🔊

The teacher insisted her students substantiate their thesis statements with historical facts.  🔊

Although Maria claims to be in love with Henry, she will not substantiate her feelings by accepting his marriage proposal.  🔊

If Larry cannot substantiate his identity at the airport, he will not be allowed to board the airplane.  🔊

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