1. 灰鲸/黑头鸦/南军的士兵：grey /灰色/灰/灰白/ | greyback /灰鲸/黑头鸦/南军的士兵/ | greybeard /老人/土制[石制] 酒壶/

noun

1. a sandpiper that breeds in the Arctic and winters in the southern hemisphere

Synonym: knotgraybackCalidris canutus

2. a dowitcher with a grey back

Synonym: graybackLimnodromus griseus

3. `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

Synonym: RebelRebJohnny RebJohnny