noun
Someone who dives, especially as a sport.
Someone who works underwater; a frogman.
(UK, Ireland) loon (Gavia)
The New Zealand sand diver.
The long-finned sand diver.
(London, dated) A passenger carrying vehicle using an underground route; specially, a diver tram, one using the former Kingsway tramway subway (1906-1952).
(slang, obsolete) pickpocket
(sports) A competitor in certain sports who is known to regularly imitate being fouled, with the purpose of getting his/her opponent penalised.