1. Fully awake
   "so excited she was wide-awake all night"
   - unsleeping 
2. Fully alert and watchful
   - heads-up

See also: alert, awake, watchful

• Church of the Brethren
• church officer
• church property
• church roll
• church school
• church service
• Church Slavic
• church tower
• church year
• church-state
• churchgoer
• churchgoing
• Churchill
• Churchill Downs
• Churchillian
• churchly
• churchman
• churchwarden
• churchwoman
• churchy
• churchyard
• churidars
• churl
• churlish
• churlishly