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

See also: alert, awake, watchful

• Galahad
• Galan
• galangal
• galantine
• galanty show
• Galapagos
• Galapagos Islands
• Galatea
• water buffalo
• water bug
• water butt
• water buttercup
• water cabbage
• water caltrop
• water carpet
• water cart
• water chestnut
• water chestnut plant
• water chevrotain
• water chickweed
• water chinquapin
• water chute
• water clock
• water closet
• water clover