prove

from The American Heritage® Dictionary of the English Language, 5th Edition.

• intransitive verb To establish the truth or validity of (something) by the presentation of argument or evidence.
• intransitive verb To demonstrate the reality of (something).
• intransitive verb To show (oneself) to be what is specified or to have a certain characteristic.
• intransitive verb To establish by the required amount of evidence.
• intransitive verb To establish the authenticity of (a will).
• intransitive verb To demonstrate the validity of (a hypothesis or proposition).
• intransitive verb To verify (the result of a calculation).
• intransitive verb To subject (a gun, for instance) to a test.
• intransitive verb Printing To make a sample impression of (type); proof.
• intransitive verb Archaic To find out or learn (something) through experience.
• intransitive verb To be shown to be such; turn out.

from The Century Dictionary.

• noun An obsolete form of proof.
• In homeopathic practice, to test the therapeutic action of (a drug) by observing the symptoms following its administration in appreciable amounts to persons in health.
• To try by experiment, or by a test or standard; test; make trial of; put to the test: as, to prove the strength of gunpowder; to prove the contents of a vessel by comparing it with a standard measure.
• To render certain; put out of doubt (as a proposition) by adducing evidence and argumentation; show; demonstrate.
• To establish the authenticity or validity of; obtain probate of: as, to prove a will. See probate.
• To have personal experience of; experience; enjoy or suffer.
• In arithmetic, to ascertain or demonstrate the correctness of (an operation or result) by a calculation in the nature of a check: as, to prove a sum.
• In printing, to take a proof of.
• Synonyms To verify, justify, confirm, substantiate, make good, manifest.
• To make trial; essay.
• To be found or ascertained to be by experience or trial; be ascertained or shown by the event or something subsequent; turn out to be: as, the report proves to be true; to prove useful or wholesome; to prove faithful or treacherous.
• Hence To become; be.
• To succeed; turn out well.
• To thrive; be with young: generally said of cattle.

from the GNU version of the Collaborative International Dictionary of English.

• intransitive verb To make trial; to essay.
• intransitive verb To be found by experience, trial, or result; to turn out to be
• intransitive verb obsolete To succeed; to turn out as expected.
• transitive verb To try or to ascertain by an experiment, or by a test or standard; to test
• transitive verb To evince, establish, or ascertain, as truth, reality, or fact, by argument, testimony, or other evidence.
• transitive verb To ascertain or establish the genuineness or validity of; to verify.
• transitive verb To gain experience of the good or evil of; to know by trial; to experience; to suffer.
• transitive verb (Arith.) To test, evince, ascertain, or verify, as the correctness of any operation or result; thus, in subtraction, if the difference between two numbers, added to the lesser number, makes a sum equal to the greater, the correctness of the subtraction is proved.
• transitive verb (Printing) To take a trial impression of; to take a proof of.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• verb Simple past of proove.
• verb transitive To demonstrate that something is true or viable; to give proof for.
• verb intransitive To turn out; to manifest.
• verb copulative To turn out to be.
• verb transitive To put to the test, to make trial of.
• verb archaic To experience

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb increase in volume
• verb be shown or be found to be
• verb obtain probate of
• verb prove formally; demonstrate by a mathematical, formal proof
• verb cause to puff up with a leaven
• verb provide evidence for