'Navvy' definitions:

Definition of 'navvy'

From: WordNet
noun
A laborer who is obliged to do menial work [syn: drudge, peon, navvy, galley slave]

Definition of 'Navvy'

From: GCIDE
  • Navvy \Nav"vy\, n.; pl. Navies. [Abbreviated fr. navigator.] Originally, a laborer on canals for internal navigation; hence, a laborer on other public works, as in building railroads, embankments, etc. [Eng.] [1913 Webster]

Synonyms of 'navvy'

From: Moby Thesaurus