Englishfor English speakers
surface
Noun
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The surface of an object is the outside of the thing.
The surface of the earth is very large.
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The surface of a liquid is the top of it.
The surface of the lake was smooth.
surface
Verb
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When a thing surfaces, it comes to the top of liquid.
The fish surfaced to get food.
The swimmer surfaced for air.
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If information or facts surface, they are revealed or become known.
s surfaced that claimed the company was under investigation.
cavity
Noun
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A cavity is a hole or hollow area.
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A cavity is a hollow area inside the body (like the sinuses).
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A cavity is a hole in a decayed tooth.
You have a cavity in your back teeth.