Englishfor English speakers
round
Preposition
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If mathx/math is round mathy/math, mathy/math is in the middle and mathx/math is on all sides.
Everyone stood round the fire to keep warm.
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If you turn or look round, you are now facing the opposite direction.
She turned round to see what had made the noise.
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You round up numbers in math
You round 28 up to 30.
round
Adjective
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Something is round if it's like a circle or like part of a circle. It is curved, not straight.
trip
Noun
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A trip is a journey to a place
Let us go on a trip to John Doe Mountain. I have not been there in a while.
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A trip is when a person stumbles over something.
He broke his wrist after that nasty trip.
trip
Verb
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When a person trips, he stumbles over something.
Be careful of all the books on the floor. You do not want to trip.
amplifier
Noun
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An amplifier is an electronic device that increases the strength of a sound or signal.
You need to plug in the amplifier to get any sound.