Informal.| 1. | (an exclamation of surprise, wonder, pleasure, or the like): Wow! Look at that! |
| 2. | to gain an enthusiastic response from; thrill. |
| 3. | an extraordinary success: His act is a real wow. |
| 4. | excitement, interest, great pleasure, or the like: a car that will add some wow to your life. |

| 1. | Audio. a slow wavering of pitch in sound recording or reproducing equipment caused by uneven speed of the turntable or the tape. Compare flutter (def. 12). |
| 2. | Scot. and North England Dialect. a howl, wail, bark, whine, or mew. |
| 3. | Scot. and North England Dialect. to howl, wail, bark, whine, or mew. |

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| WOW World Ocean Watch |