[wahyd-uh-weyk] 
| 1. | fully awake; with the eyes wide open. |
| 2. | alert, keen, or knowing: a wide-awake young woman. |
| 3. | Also called wide-awake hat. a soft, low-crowned felt hat. |
| 4. | the sooty tern. |
| a black and white tern, Sterna fuscata, of small tropical islands. |
wide awake
Fully awake; also, very alert. For example, He lay there, wide awake, unable to sleep, or She was wide awake to all the possibilities. The wide in this idiom alludes to the eyes being wide open. [Early 1800s]