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.
availability
Noun
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Availability is the state or quality of being available.
of
Preposition
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Made using.
It is a house of cards.
catalyst
Noun
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A substance that makes a chemical reaction happen faster. The catalyst is not changed by the process and can be used again.
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A catalytic converter.
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Someone or something that encourages progress or change, or helps it happen.
I hope the new CEO will be a catalyst for change.
Communication is a catalyst for peace.