Englishfor English speakers
rigorous
Adjective
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To be rigorous someone needs to be very strict, exact and not change the rules.
To make herself fit, she kept to a rigorous program of exercise.
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Something that is rigorous is very difficult and unpleasant.
He found the walk through the snow was quite rigorous.
selection
Noun
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A person makes a selection when a person chooses a smaller number of things from a larger group of things.
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A selection of things is different things that have been chosen or that you can choose from.
The window of the store shows a selection of the things you can buy in the store.
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Selection is a process where the best adapted life forms survive and the others die out.
Charles Darwin was a scientist who wrote about natural selection.
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In Australia, a selection was an area of land which a farmer could choose to buy.
The first thing he had to do was clear the trees of his selection.
rule
Noun
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A rule is a statement that tells whether something is right or wrong.
Peter picked up the football, which was against the rules, so the other team got a throw-in.
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A king's rule is the time he controls the country.
The next king had a very short rule: only two years.
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A rule is another name for a ruler, a measuring device.
rule
Verb
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When someone rules, he or she is in charge, like a king or queen.
The king has ruled for 33 years.