(nautical) A man-made semi submerged maritime structure, usually installed to provide a fixed structure for temporary mooring, to prevent ships from drifting to shallow water or to serve as base for navigational aids.

A carnivorous aquatic mammal in one of several families of order Cetacea, famed for its intelligence and occasional willingness to approach humans.

plural of dolphin

The act of pitching forward and backward like a dolphin (can be done in the air or water).

A member of an athletic team called the Dolphins, such as the Miami Dolphins and teams of various institutions of learning.

A surname. / A township in Knox County, Nebraska, United States. / An unincorporated community in Brunswick County, Virginia, United States.

plural of Dolphin

(colloquial, derogatory) An environmentalist who is considered to be too earnest.

plural of spotted dolphin

Atlantic spotted dolphin (Stenella frontalis) / pantropical spotted dolphin (Stenella attenuata)