Related Clues:

• Ship-to-ship call
• Call to a swab
• Naval salute
• Nautical imperative
• Tar's call
• Ahoy
• Halt, at sea
• Shout before throwing a rope
• Sea greeting
• Naval greeting
• Mate's call, perhaps
• Command to halt
• Captain's cry
• Sailor's shout
• ''Stop!'' at sea