1. (n.) One who, or that which, dives.
2. (n.) Fig.: One who goes deeply into a subject, study, or business.
3. (n.) Any bird of certain genera, as Urinator (formerly Colymbus), or the allied genus Colymbus, or Podiceps, remarkable for their agility in diving.
Thesaurus Entries
bather, bathing beauty, bathing girl, cannon, cutpurse, deep-sea diver, dip, free diver, frogman, jumper, mermaid, merman, natator, parachute jumper, pearl diver, plunger, scuba diver, skin diver, sky diver, snorkel diver, swimmer, wire
