A person who proves or demonstrates the truth of something. The mathematician was a skilled prover, able to demonstrate complex theorems with ease.
A device or tool used to test or verify the accuracy of something. The laboratory used a prover to ensure the accuracy of their measurements.
A heated and humidified chamber in which bread dough is left to rise under controlled conditions; proof box. The baker transferred the shaped baguettes to the prover for their final fermentation.