We don't have synonyms for woodhen yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are wooden, wood hen and woodmen.
(n) :
Any of the species Hypotaenidia sylvestris (syns. Gallirallus sylvestris, Tricholimnas sylvestris, Ocydromus sylvestris) of rails in the family Rallidae endemic to Lord Howe Island, Australia.
(n) :
Any of the species Hypotaenidia sylvestris (syns. Gallirallus sylvestris, Tricholimnas sylvestris, Ocydromus sylvestris) of rails in the family Rallidae endemic to Lord Howe Island, Australia.