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English definition of “course”

course

noun
 
/kɔːs/
of course A1 used to say ‘yes’ strongly, often to be polite: “Can you help me?” “Of course!”
of course B1 used to show that what you are saying is obvious: Of course, the Olympics are not just about money.
of course not A2 used to say ‘no’ strongly: “Do you mind if I borrow your pen?” “Of course not.”
A1 a set of lessons about a particular subject: She did a ten-week computer course.
A2 a part of a meal: a three-course dinner
B1 an area used for horse races or playing golf: a golf course
the direction in which a ship, plane, etc. is moving: The boat was blown off course (= in the wrong direction).
the way something develops, usually over a long time: Nuclear weapons have changed the course of history.
(Definition of course from the Cambridge Essential Dictionary © Cambridge University Press)
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