Related Clues:

• Call to a mate onboard
• Call to a sailor
• Call to a shipmate
• At sea, 'stop!'
• "Stop this ship!"
• Stop, to swabs
• "Cease!" kin
• "Halt," to a salt
• Stop on the briny
• A great stop!
• "Drop anchor now"
• Hail on a bridge
• Yachter's 'Yo!'
• Hello with a wave?
• Port "Stop!"