Englishfor English speakers
diagnosis
Noun
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A diagnosis is the naming of your disease, injury, or other problem, usually by a doctor.
It took a long time, but she finally got a diagnosis of depression.
in
Preposition
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Used to show that something is inside something else.
The cat is in the box.
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Used to show that someone is at home, or is available.
Is John in?
The Doctor is now in.
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Used to show movement towards the inside.
The rain came in through the window.
the
Determiner
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Used, instead of a, to reference something specific, already known to exist.
Compare "I read a book." and "I read the book."
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Used with a stress, to show that the word following is special.
Are you the John Smith that I went to school with?
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Used with an adjective that acts like a noun to mean all of the people concerned
The poor are always with us.
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Used with superlatives forms of adjectives and adverbs.
You are the best.
course
Noun
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In school, a course is a class in a specific subject.
The science course was very difficult.
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A course is the path that something follows in space or in time.
During the course of the evening, things went from bad to worse.
The economy grew quickly over the course of the next few years.
In the course of testing the drug, they found new uses for it.
One teacher can completely change the course of your life.
We'll have to let the disease take its course.
It is important that we decide now on the future course for the company.
The wind kept blowing the boat off course.
The course of the river has changed over time.
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For a meal, a course is one part of a meal such as dessert.
We usually do not eat a meal with nine courses.
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Some games are played on a course.
The game of golf is played on a golf course.
course
Verb
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If something courses, it runs or flows through something.
Blood courses through the veins and arteries in our bodies.
The oil coursed through the engine.
of
Preposition
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Made using.
It is a house of cards.
operation
Noun
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An operation is a medical process, often opening the human body.
The doctors performed the operation in three hours.
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An operation is an action of a group of people working for a goal (often military).
The Army operation was a success.
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An operation is part or all of a business. small(often plural)/small
The company's East Coast operation was bigger than its West Coast operation.
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An operation is a symbol that is used to perform a specific operation (addition, subtraction, multiplication or division) in maths.
The plus symbol is used to perform a specific operation in maths which is addition.