a helpful or good effect, or something intended to help, an area, usually covered with grass, for example used for playing sports, very skilled and experienced at something, the right or opportunity to use or look at something, businesses that operate only in the country where they are based, to increase something in size, number, or importance, the speed at which someone or something moves, or with which something happens or changes, to change your ideas or behaviour to make them suitable for a new situation, to organize and perform a particular activity, written or available in several different languages.

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