Englishfor English speakers
concentrate
Verb
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If you concentrate on something, you use most of your time and work there.
We concentrated our rebuilding efforts on villages in the North of the city, where most of the damage had been done.
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If you concentrate on something, you think about it and not about other things.
I went to a quiet room so I could concentrate.
It's better to look at the big picture instead of concentrating on the details.
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If something is concentrated somewhere, there is a lot of it in that place.
The fighting was concentrated in a few small areas.
concentrate
Noun
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A concentrate is a liquid such as juice or chemicals from which most of the water has been removed.
Instead of fresh orange juice, we usually make it from concentrate.
solar
Adjective
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If something is solar, it is of or related to the sun.
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If something is solar, it is made through the actions of the sun.
solar
Noun
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A solar is a loft or other kind of building that makes the private living space of the heads of the household.
The lord of the manor retired to his solar at the end of the day.
collector
Noun
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A ticket collector is somebody who checks your ticket on a bus or train.
After you get on the bus, be ready to show your ticket to the collector.
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A debt collector is somebody who tries to make people pay their debts when payment is late.
Life was very difficult when a debt collector started calling daily.