Perfectly all right

• Just dandy
• NASA's "all systems gO"
• Letters of satisfaction
• Verbal green light
• Astronaut's 'fine'
• Just ducky
• Astronaut's "thumbs-up": Hyph
• "Thumbs up" message
• ''All systems go''

Wikipedia Word definitions in Wikipedia
AOK is a North American term, used to infer good order or condition; all right. It may also refer to: AOK (album) , Mandaryna's album AOK Kerkyra , a Greek football club A.O. Karditsa F.C. , a Greek football club commonly called by their abbreviated name ...