n. One who plays a fiddle, violin, or some similar instrument; a violinist.n. A sixpence.n. In the United States, a fiddler-crab.n. The common sandpiper, Tringoides hypoleucus, so called from its habit of balancing the body as if on a pivot.n. A fish, Trygonorhina fasciata, a member of the family Rhinobatidæ.