Related Clues:

• It passes between decks
• 'Hey!'
• 'Excuse me'
• 'Yoo-hoo!'
• Conversation starter
• 'Pardon me'
• 'Yo!'
• 'Land ___!'
• 'Look here!'
• 'Psst!'
• Attention-getter
• Hail, on the briny
• Hey there, at sea
• Throat clearer
• Doubt-conveying interjection