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brake is a device for stopping motion. To brake is to utilize such a device. (Scroll down for "brake" rather than "break".)
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break is a rest period, or a fracture. To break is to cause a separation, or to take a rest. This also has other definitions: waves break, you can break wind, break up with someone, break out in song, etc.
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compliment is an expression of regard, favor, etc.
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complement is what is required to create or complete a whole. In geometry the complement of an angle A is the angle B such that A + B is 90 degrees. When dealing with sets, the complement of a set A is all the stuff in the domain that is not in A.
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levee is a barrier intended to contain the flow of water.
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levy is a tax or fine, usually against an item or act, or as the result of a legal judgment. To levy is to impose a levy, or you can levy troops.