Related Clues:

• Part of a naval exchange?
• ''Halt!'' to a salt
• Gob's salute
• Offshore salute
• Hand's shout
• Sailor hailer
• "Cease!" at sea
• Nautical hey there
• Nautical call
• Shout on deck
• "Yo!" asea
• It's shouted between decks
• Sailor's hailing call
• Main attention-getter?
• “Hi, sailor”