A colon may be used to introduce a list, especially after words such as “these,” “the following,” or “as follows.” Colons are used to introduce material that illustrates or explains the material that precedes it. They are also used to introduce a long quotation. Colons are also used to separate the hour and minute in writing the time and after the salutation of a business letter.
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Last updated: 12/15/2017
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