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| | whistle |
 | | to move, go, pass, etc., with a whistling or whizzing sound, as a bullet or the wind. |
 | | an instrument for producing whistling sounds by means of the breath, steam, etc., as a small wooden or tin tube, a pipe, or a similar device with an air chamber containing a small ball that oscillates when air is forced through an opening, producing a high-pitched, warbling tone. |
 | | Congress has blown the whistle on all unnecessary expenditures for the program. |
| www.infoplease.com /dictionary/whistle (265 words) |
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