Synonym: certify, check, confirm, demonstrate, document, establish, justify, show, substantiate, verify. Antonym: suppose. Similar words: approve, proverb, improved, approve of, improvement, provide, province, provoke. Meaning: [pruːv] 
v. 1. be shown or be found to be 2. establish the validity of something, as by an example, explanation or experiment 3. provide evidence for 4. prove formally; demonstrate by a mathematical, formal proof 5. put to the test, as for its quality, or give experimental use to 6. increase in volume 7. cause to puff up with a leaven 8. take a trial impression of 9. obtain probate of.
v. 1. be shown or be found to be 2. establish the validity of something, as by an example, explanation or experiment 3. provide evidence for 4. prove formally; demonstrate by a mathematical, formal proof 5. put to the test, as for its quality, or give experimental use to 6. increase in volume 7. cause to puff up with a leaven 8. take a trial impression of 9. obtain probate of. 
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121. He needed to prove that his success was not just a flash in the pan.
122. To prove the point, again we need only look for substantiation to Japan, China, and the international situation.
123. We do not have the evidence to prove these claims.
124. I knew he had done it, but there was no way I could prove it to Eddie.
125. If you wish to sell the property, you will first have to prove your title to it.
126. The research should prove invaluable in the study of linguistics.
127. There are fears that the existing flood barrier may prove insufficient.
128. You need to prove that the company's representative failed to exercise due care.
129. I shall prove to you that the witness is quite unreliable.
130. Some members of the committee are likely to prove obdurate on this matter.
131. With so little evidence to prove her guilt, few people thought she should hang.
131. Wish you can benefit from our online sentence dictionary and make progress day by day!
132. I was a nothing and a nobody with everything to prove.
133. Opponents of the measure say it's political grandstanding that could prove devastating to the economy.
134. Putting even more tax on fuel could prove to be a banana skin for the government.
135. The new media are unlikely to prove qualitatively different from the old.
136. The new software will prove a boon to home computer users.
137. They were unable to prove that she died as a direct result of his injection.
138. I'm not going to run the marathon just to prove a point.
139. She claimed that money had been wasted and our financial difficulties seemed to prove her point.
140. The research should prove invaluable in the study of children's language.
141. He claims he has evidence which could prove his innocence.
142. These new facts, together with the other evidence, prove the prisoner's innocence.
143. Not so fast. We've got to prove it first, haven't we?
144. I wish he'd stop trying to prove himself all the time.
145. Many members are determined to prove that they are fiscally responsible.
146. His good looks won him the election but he has still to prove that he's not just a pretty face.
147. It was always clear that Schmidt's third term in office would prove a difficult one.
148. She came to the meeting armed with all the facts and figures to prove us wrong.
149. He does not have a shred of evidence to prove his claim.
150. This line of investigation could prove to be a complete dead end.