WordWeb Online

1. 'Johnny' was applied as a nickname for Confederate soldiers by the Federal soldiers in the American Civil War; 'greyback' derived from their grey Confederate uniforms
   - Rebel, Reb, Johnny Reb, Johnny, grayback [US]
    
2. A dowitcher with a grey back
   - grayback [US], Limnodromus griseus
    
3. A sandpiper that breeds in the Arctic and winters in the southern hemisphere
   - knot, grayback [US], Calidris canutus

Derived forms: greybacks

Type of: Confederate soldier, dowitcher, sandpiper

Part of: Calidris, genus Calidris