prove

To show with facts or evidence that something is true.

• Can you prove it?
• The photos proved that she was there.
• He has proved his ability to solve difficult problems.

How to use it: prove that… (The test proved that the water was safe.); prove something to someone (You do not need to prove anything to me.); prove someone/something + adjective (The evidence proved him innocent.)

Similar words: demonstrate, establish

Opposites: disprove

Common phrases: prove something, prove a point, prove someone wrong

To turn out to be a particular thing or have a particular quality.

• The map proved useful.
• Her advice proved to be correct.
• The repairs have proved more expensive than expected.

How to use it: prove + adjective (The task proved difficult.); prove to be something (The house proved to be a good investment.)

Similar words: turn out

Common phrases: prove useful, prove to be, prove difficult, prove wrong