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theory English

Meaning theory meaning

What does theory mean?
Definitions in simple English

theory

A theory is an idea that tries to explain an observation. The new information showed that his theory about growth was incorrect. Nobody has disproved Einstein's theory of general relativity.

theory

a well-substantiated explanation of some aspect of the natural world; an organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena theories can incorporate facts and laws and tested hypotheses true in fact and theory (= hypothesis) a tentative insight into the natural world; a concept that is not yet verified but that if true would explain certain facts or phenomena a scientific hypothesis that survives experimental testing becomes a scientific theory he proposed a fresh theory of alkalis that later was accepted in chemical practices a belief that can guide behavior the architect has a theory that more is less they killed him on the theory that dead men tell no tales

Synonyms theory synonyms

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Topics theory topics

What do people use theory to talk about?

Examples theory examples

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Simple sentences

In theory, there is no difference between theory and practice. But, in practice, there is.
The theory is generally accepted.
The theory is not accepted.
I wouldn't go so far as to say your theory is completely wrong.
Ten years ago his theory would not have been generally accepted.
I think I have a theory about that.
The scientific theory I like the best is that the rings of Saturn are composed entirely of lost luggage.
What do you base your theory on?
I think your basic theory is wrong.
Most experts think a lot of his theory.
Perry is mistaken in thinking that Emmet's theory was constructed without reference to Newtonian physics.
The theory is based on thorough research.
The theory is too abstract for me.
I think your theory does not hold water.
I hope to make clear why I think Emmet's theory, originally introduced in the field of design architecture, is so important in physics.
It is that Emmet's theory is compatible with previous theories in physics that is of most significance.
Have you studied Darwin's theory of evolution?

Movie subtitles

Here at nasa's Ames Research Center in northern California, astronomer Peter schultz and his team are testing to see if this theory of Panspermia is even remotely possible.
Theory's all very well and good, Sister, but lately, every time I've offered you a practice drive, you've made excuses and refused.
Governments relied on the theory of mutually assured destruction to deter an all-out nuclear war, but this strategy will inevitably fail.
The most popular theory sees him as an advanced contact in the smuggling of war materials to America-friendly countries, like Georgia.
At last I can put the Caligari theory to the test -- I now shall soon know if this patient can be compelled to perform deeds he would shrink from in his normal waking state.
So you think someone knows of my plans and is thus also interested in your moon-gold theory.?
But, Professor Van Helsing, that theory is implausible.
But, Professor, according to your own theory, the vampire must return to his grave before dawn.
That absurd theory of yours.
I'm studying psychopathic criminology and I have a theory.
I've formed a theory about that that would interest you.
You'll have to think of a fresh theory now, Doctor.
My theory was a perfectly good one.
Well, what's your theory?
I need the theory.
Jane's got a theory that you were wrong in killing that ape.
No, no, no, Professor. Your dissertation refutes every scientific theory.
But from the Neanderthal man to the Cardiff Giant it has been an absolute theory.
In spite of all that, you still insist that Huxley's theory is authentic?
Still, his original theory interests me.
And your theory is that Diana Roggers mistook you for somebody else? Yes.
They do in theory, in fact it's uneatable.
On the theory that the best defense is a bold attack.
My theory is you must start long before that.
Which is my reason for explaining so carefully Wundt-Farbhalf's theory of the symptoms of hyper-amnesia and the hypnagogic state.
It is strange to believe in the theory that places this landscape. Atlantis is here Yes, yes.
What was the police theory?
By the way, another pet theory of yours just blew up.
We worked out the theory for that operation together.
Too much theory, too much passion for experimentation.
Just goes to prove the theory of our State.
I don't know what Rokai is up to but in theory it sounds fair.
You see, he had a theory that if you should find one perfect thing or place or person, you should stick to it. Do you think that's really silly?
Yours, according to your theory.
Lieutenant, I'm afraid the suicide theory doesn't quite stand up.
I'm the one who developed the theory into practice.
Oh, I'm only exploring your theory.

News and current affairs

In Britain, where Prime Minister Tony Blair supported the US attitude entirely, the government introduced similar measures and even offered a new theory.
And yet there is no denying that the world has become too intricate for any simple, overarching theory to explain complex economic, technological, demographic, and environmental shifts.
Like history, social-scientific theory is written by the victors and shaped by the context and challenges of its time.
Some European academics tried to argue that there was no need for US-like fiscal transfers, because any desired degree of risk sharing can, in theory, be achieved through financial markets.
NEW YORK - Is this the Age of the Conspiracy Theory?
Although economic theory today is much improved, if we ask people about the cause of the current crisis, we will mostly get the same answers.
Chaos theory in mathematics explains such dependency on remote and seemingly trivial initial conditions, and explains why even the extrapolation of apparently precise planetary motion becomes impossible when taken far enough into the future.
The mathematical models that macroeconomists have may resemble weather models in some respects, but their structural integrity is not guaranteed by anything like a solid, immutable theory.
Conventional theory suggests that a single country (or group of countries) consolidating its finances can expect lower interest rates, a weaker currency, and an improved trade position.
Pride, dignity, and self-confidence do not figure in economic theory: they cannot be measured.
But one lesson of modern finance theory is that, in well functioning financial markets, repackaging risks should not make much difference.
Of course, it is true that in theory one can oppose Israel's policies without being anti-Semitic.
Even freedom, which in theory is important for the members of a liberal society, is not much valued in Poland.
One theory is that we have gotten better at IQ tests because we live in a more symbol-rich environment.
In literary terms, this conspiracy theory closely resembles The Protocols of the Elders of Zion, featuring secretive global elite with great power and wicked aims.
In the Muslim world, there is a widespread conspiracy theory that the Israelis were behind those attacks, and that all Jews who worked in the buildings stayed home that day.
The core theory with which emerging feminists in more traditional and religious societies are working is far different from that of Western feminism - and in some ways far more profound and humane.
The multilateral lenders advocated a development strategy based on the theory of comparative advantage and unbridled economic liberalization.
Theory, no matter how elegant, Rawls argued, should be dismissed or revised when proven untrue.
It took 46 years from the discovery of superconductivity to the 1957 Bardeen, Cooper, and Schrieffer (BCS) theory of how the phenomenon occurs.
We were astonished during President George W. Bush's first term at the administration's hostility to science, reflected in its stance on climate change and Charles Darwin's theory of evolution.
In theory, this already has happened: K. R. Narayanan, born into a poor Dalit family, served as India's president, the highest office in the land, from 1997 to 2002.

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