What is another word for spar buoy?
Pronunciation: [spˈɑː bˈɔ͡ɪ] (IPA) 
A spar buoy, also known as a cylindrical buoy, is a type of marine buoy that is used to mark a particular location at sea. Synonyms for the word spar buoy include cylindrical buoy, pillar buoy, staff buoy, tower buoy, and mast buoy. Each of these terms describes the same type of buoy, which is typically made of steel or other durable materials and anchored to the seabed. Spar buoys are often used to mark shipping channels, navigational hazards, and other important locations at sea. Their bright, easily visible design ensures that they are visible from a distance, helping to keep mariners safe and informed while out on the water.
