prove

US /pruv/

UK /pru:v/

A2TOEIC
v.t.Transitive VerbTo demonstrate truth by providing evidence
I will not believe you until you prove what you say is true
v.i.Intransitive VerbTo turn out to be; be found to be.
The cake will prove delicious if you follow the recipe.
v.t.Transitive VerbTo test the quality or worth of something.
The company needs to prove the safety of the new drug.

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