Related Clues:

• Response to an order
• Sailor's ''yes''
• ''Si, si'' at sea
• Sailor's OK, and a phonetic hint to this puzzle's theme
• Base response?
• ''Roger,'' at sea
• Scolded child's reply, perhaps
• Boot-camp assent
• Assent asea
• Assent on a ship
• 'Will do, cap'n!'
• Private response?
• Reply to a higher-up
• Words to a captain
• "Affirmative, captain!"