Answer:

PROVES

Answer	Crossword Clue
PROVES	Shows to be true
PROVES	Establishes as true
PROVES	Verifies.

PROVES	Turns out to be.
PROVES	Demonstrates.
PROVES	Authenticates
PROVES	Bears out
PROVES	Puts to the test

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.