Englishfor English speakers
combination
Noun
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A combination is an item or group made of different things or kinds of things.
Any combination of these factors increases the risk dramatically.
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Combination is the process of putting two or more things together.
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math{C}_{n}^{m}/math
of
Preposition
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Made using.
It is a house of cards.
contract
Noun
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A contract is a legal agreement to trade goods, services and/or property. It's usually written down.
If you would just sign this contract, the car will be yours.
In Japan, most worker’s employment contracts last until the age of sixty.
My father’s employment contract is for forty years.
You must look over the contract before you sign it.
contract
Verb
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If something contracts, it gets smaller.
As the wood dries out, it contracts.
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If you contract someone to do a job, you enter into a contract with them.
We've contracted a cleaning company to take care of the office.
When there's too much work, there are a number of small firms to which we will contract it out.
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If you contract a disease, you become sick with it.
It's hard to understand why people risk contracting sexually transmitted diseases.
He contracted the flu.
award
Noun
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An award is something that you give to someone who has done something very well.
Each year, Westinghouse announces the winners of its awards for the best high-school science projects.
He won the National League's Most Valuable Player award in 2007.
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An award is money that a court decides should be given to somebody who has won a legal case.
The lawyer often takes 10 to 30 percent of any awards of damages.
award
Verb
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If you award somebody something, you officially give it to them, usually because they have done something well.
A total of $205,000 in prize money will be awarded, with $50,000 for the winner and $25,000 for second place.
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If you award somebody something, you officially decide that somebody should receive money or a contract.
The judge ruled that the company had no just cause for dismissing Morsi, and he was awarded damages.
The company was awarded a contract worth $2.3 billion to build the new highway.
criteria
Noun
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Criteria are a set of principles that you use to judge something or decide about something.
One of the criteria for measuring the success of a democracy is the percentage of people that vote in that society .
The project proposal does not meet current criteria for approval.