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

(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.

plural of dolphin

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

plural of Dolphin

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

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

(Britain, of tuna or other seafood) caught using fishing nets that lessen the chances of killing dolphins.

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

(idiomatic, slang) masturbate (male)