But this can only be definitively done at post mortem by examining the brain.
Your dentist can tell you definitively if you grind your teeth at night or not.
It's too early to pronounce definitively that the big Obama decisions are not working.
None of them could definitively say what the remark was, an Oxford City Council spokeswoman said.
All the major Republican candidates have addressed this question, some more definitively than others.
Top managers are axed within months of definitively bad results (though lame boards linger longer).
And this time Best Buy accomplishes the more difficult trick, answering those questions quickly and definitively.
Such hypotheticals are impossible to answer definitively, but there is little evidence that it would.
Today, we can definitively say that the Qaddafi regime has come to an end.
He had just definitively abandoned the race, and was dining and joking with friends.
Neither ruled out definitively the possibility that Williams could have somehow done it alone.
With the sudden death of Michael Joseph Jackson, that part of my childhood is definitively over but never forgotten.
My mood was definitively changing, but to mild irritation and not to adoration or morbidity.
However, the legal high has not been definitively established as a cause of death.
The Koran and the sayings of the prophet Muhammad do not definitively address this issue.
So they were, until America moved so definitively to the right that he became the culture himself.
If you watch the news or read the newspaper, I think it is definitively a big story.
Mr. MICHAEL FLORES (California Fish and Game Department): We still don't know definitively how these things worked.
Given the imminent Vacant See, the Holy Father has now decided to accept the said resignation definitively.
But soon after, the U.S. lent assistance to help Mexico definitively expel the French from their land.
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Can you say definitively that you will postpone your own vacation until these two matters are resolved?
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This presentation, of Domenico Scarlatti's "Stabat Mater" and Bach's "Jesu meine Freude, " more definitively bears the Tritle stamp.
Although Mr Pantani was never definitively found guilty of using drugs, he could not throw off the accusations.
Despite a wealth of grainy photos and shaky videos, no-one has been able to definitively prove that ABCs are at large.
This is false, a canard originally conceived by General Pinochet's enemies and now definitively despatched by his critics.
The study cannot definitively prove this harm, but it is well done and the findings are very suggestive.
It will even look for worrisome side effects, hoping to definitively prove that its product has a safety advantage.
As we all know, in July 2012, the situation became immensely clearer when the Higgs boson was definitively discovered.
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In 2010 the revolution was definitively reversed, when Mr Yanukovych was elected president and Mrs Tymoshenko forced into opposition.
"I don't think that these workers have left definitively Algeria, " Yousfi told reporters, according to the Algerian Press Service.
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