Related Clues:

• It forms at the mouth
• Sound, say
• Shoreline breaker
• It may have a big mouth
• Body near a sound, perhaps
• River-mouth feature
• Means of entry
• Arm of a sea
• Puget Sound, e.g.
• Altanta-based airline
• Coastal area
• US Airways alternative
• Marina locale
• Firth
• Dent in the coastline