Englishfor English speakers
back
Preposition
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Toward the rear.
He went back behind the stands.
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To a place again.
I didn't like it, so I sent it back.
He went back to the same house.
They came back again.
back
Noun
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The back is the rear part of something; it is the part in the other direction from the front.
I went to the back of the house.
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The back is the rear part of the human body.
He had a scar on his back.
back
Verb
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If you back something, you support it.
The Republicans backed the bill.
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If you back up, you move backward.
He put the car in gear and backed right into the garage door.
localizer
noun
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(computing) A person who localizes
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(aviation) The component of an instrument landing system that provides runway centerline guidance to aircraft, but not the glideslope information.
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.