n. A verbal disagreement; a debate; a statement in support of something. 

At the debate, Zachariah and Aaron represented a strong argument on the subject of school vouchers but got into a more spirited argument later over whose viewpoint was right.

adj. Appealing to the intellent of powers of reason; sound; compelling.

Rily made a very cogent argument for a vacation at the beach, so we chose Rio de Janeiro over Katmandu. 

adj. Serving to put an end to a question; decisive. 

Daffodil offered conclusive proof to her schoolmates that in the original version of snow white the dwarves did not have names.

n. A consequence that follows naturally; an easily drawn conclusion.

WHen you hear thunder, an obvious corollary is that there has been lightning. 

v. To support with evidence; to make certain.

Prosecutors are required to corroborate allegations before taking suspect to trial.

v. To make a speech in a dramatic manner, to speak against. 

Fiona declaimed against the heal care system, arguing that the neediest people in our country recieve the worst medical attention. 

adj. Relating to diplomacy; tactful.

Hamish looked for a diplomatic way to tell Tabby that her see-through blouse was inappropriate office attire. 

v. To persuade not to do something.

The gruesome video recording of traffic accidents was shown to the drivers ed students to dissuade them from drinking and driving.

v. To infer or estimate from something that is known.

Samara asked the painter to extrapolate when he would be finished painting the four bedrooms based on how long it took him to do one.

n. A false notion ot belief; a statement based on false belief; reasoning that is logically unsound.

Many people believe that stinging insects can only sting once, but that is a fallacy. 

n. An exaggeration not meant to be taken seriously.

Advertisers like to use hyperboles such as "the best ever" to attract consumers to their products. 

adj. Implied but not directly expressed.

When Monica told me she was spending all night washing her hair, I understood the implicit of the meaning; she just did not want to go to the dance with me.

adj. Apparently true; credible.

Though the space opened a plausible plot and an outstanding cast, the special effects were ummarketable. 

n. A proposition on which an argument is based; matters perviously stated, 

Teh argument that Piaget's research in child development was accurate depends on the premise that his children were representative of the population as a whole.

adj. Based on probability or presumption, having a reasonable basis for belief.

The muddy prints were presumptive evidence to deduce that raccoons had been at the garbage in the night. 

v. To refute by offering evidence or argument to the contrary.

Lisa was able to rebut her father's accusations that she hadn't actually gone to the movie theatre by showing him the ticket stub.

n. A false argument; superficially plausible but false reasoning.

Tsering's philosiphy paper was dismissed as sophiostry; though its conclusion seemed legitimate, there wasn't a shred of evidence to back up his claim.

adj. Keen, forceful, and penetrating in thought, biting, distinct.

Though Yvette was right about the paint color, her trenchant remarks her Yvonne's feelings.

n. The state of being proven; the state of having legal force.

AS the misspellings on the will lede the executor to question the validity of the document.

v. To exhibit indecision; to move unsteadily back and forth; to falter.

Despite tears and tantrums, Wolfgang could not persuade his mother to waver, he could not go to the concert.