Englishfor English speakers
smooth
Adjective
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Smooth feels pleasant and flat when you touch it; not rough.
He felt the smooth skin on her cheek.
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A smooth liquid would have no lumps in it.
He mixed the flour and water until it was smooth.
tread
Noun
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A tread is a step, as in walking.
The old man moved with heavy tread across the road.
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A tread is a mark made by someone taking a step.
The police searched the crime scene for tread marks.
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Tread is the part of a wheel, tyre, or a shoe that touches the road.
The car left tread marks across the lawn.
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Tread is the surface pattern on a tyre.
The car was not safe as there was very little tread left on the tyre.
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The tread on a stair is the part on which you put your foot.
The wooden staircase had to be fixed by replacing the rotten treads.
tread
Verb
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To tread is to take a step.
The wooden bridge did not look safe so I had to tread carefully.
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To tread is to stand on, or crush.
To make wine you need to tread on the grapes to squeeze out the juice.
tyre
Noun
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A tyre is the outer part of a car wheel. It is usually made of rubber.