1. structures built out into water to protect a harbor or influence water flow
Usage: nautical; plural of jetty
2. landing places or small piers where boats can dock
Usage: plural of jetty

Examples

• The harbor was protected by two long jetties extending into the bay.
• Storm waves crashed against the stone jetties.
• Small fishing boats were moored along the wooden jetties.
• The jetties helped prevent erosion of the shoreline.
• Engineers designed the jetties to redirect the river’s flow.
• Tourists walked out on the jetties to watch the sunset.