Someone who works underwater; a frogman.
Someone who dives, especially as a sport.
The New Zealand sand diver.
A competitor in certain sports who is known to regularly imitate being fouled, with the purpose of getting his/her opponent penalised.
The long-finned sand diver.
loon (bird)
A fellow sailor serving on the same ship as another.
Any sailor (when used as a form of address by a sailor).