| Kenneth G. Wilson (1923). The Columbia Guide to Standard American English. 1993. |
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| tip, tipster (nn.) |
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| Tip, meaning a bit of expert information, a hint or a piece of inside information is Standard, but tipster, meaning a person who gives such information, especially betting information at a race track, is Conversational and Informal. | 1 |
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| | | The Columbia Guide to Standard American English. Copyright © 1993 Columbia University Press. |
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