Englishfor English speakers
construction
Noun
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Construction is the act of building something.
The workers began construction of the new hospital last week.
The recent downturn in the economy is causing a lot of pain in the construction industry with few new homes being built.
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Construction is the way that something is made.
The stone construction of these buildings makes them very cold in the winter.
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In language, a construction is a combination of form and meaning.
Spoken English doesn't use as many passive constructions as written English.
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A construction is a particular way that something is understood.
In this book, the meaning of "man" is not a simple natural thing; it is a social construction.
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A construction is a building, bridge, tower, model, or large piece of art.
A large and unusual construction stood just outside town.
of
Preposition
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Made using.
It is a house of cards.
a
Determinative
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A is used when the following word could be any of a certain type.
Compare "A book I saw on the shelf" and "The book I gave you yesterday".
a
Noun
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A is the first letter of the alphabet.
The letter "a" comes before "b".
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In some schools, an A is a very high grade.
Ron got an A on his earth science test.
theory
Noun
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A theory is an idea that tries to explain an observation.
The new information showed that his theory about growth was incorrect.
Nobody has disproved Einstein's theory of general relativity.