Which structures on the ocean floor are equivalent to mountains on land?

Thanks.

There are a couple of words used for these oceanic mountains. Check this site to find their names.

http://www.scienceclarified.com/landforms/Ocean-Basins-to-Volcanoes/Ocean-Basin.html

The structures on the ocean floor that are equivalent to mountains on land are called oceanic ridges or mid-oceanic ridges. These are underwater mountain chains that stretch for thousands of kilometers and are formed by tectonic plate activity at divergent boundaries.

The structures on the ocean floor that are equivalent to mountains on land are called underwater volcanic mountains or seamounts. These are formed by volcanic activity and can rise thousands of meters from the ocean floor. Seamounts can vary in size, shape, and composition, just like mountains on land. They often contain unique ecosystems and can serve as important habitats for marine life.