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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61. It might be difficult to prove his guilt.
62. Computers have been used to prove mathematical theorems.
63. This all goes to prove my theory.
64. She challenged the newspaper to prove its story.
65. A man needs time to prove himself.
66. He had to prove himself all over again.
67. Such data will prove invaluable to/for researchers.
68. Can you prove that to the court?
69. He tried to prove his theory to his friends.
70. I was able to prove the scoffers wrong.
71. A few hours later he was to prove it.
72. I defy anyone to prove otherwise.
73. The recent revelations may prove embarrassing to the President.
74. We have to prove how gritty we are.
75. These revelations could prove highly embarrassing for the government.
76. You might yet prove me wrong.
77. These policies would prove suicidal for our economy.
78. Her forebodings about the future were to prove justified.
79. I defy you to prove that I have cheated.
80. The plaintiff must prove that the defendant was negligent.
81. All I want is the chance to prove myself.
82. I was determined to prove my critics wrong.
83. Events were to prove the wisdom of their decision.
84. We have abundant evidence to prove his guilt.
85. One momentary lapse in concentration could prove fatal.
86. How can you prove that you are right?
87. Can you prove that I am wrong?
88. Relegation to the Third Division would prove catastrophic.
89. The charges will be difficult to prove.
90. The proposal will probably prove annoying to opposition MPs.