| hatbox | (noun) a round piece of luggage for carrying hats | - |
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| hotbox | (noun) a journal bearing (as of a railroad car) that has overheated | - |
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| paintbox | (noun) a box containing a collection of cubes or tubes of artists' paint | - |
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| postbox | (noun) public box for deposit of mail | Synonyms: letter box, mailbox |
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| saltbox | (noun) a type of house built in New England; has two stories in front and one behind | - |
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| sweatbox | (noun) a device that causes tobacco leaves or fruit or hides to sweat | - |
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| (noun) small or narrow cell | - |