Wo
Origin 1
Alternative forms
Variant of who.
Full definition of wo
Interjection
Origin 2
Variant of woe.
Noun
wo
(plural wos)- Obsolete spelling of woe
- 1815, Philip Freneau, A collection of poems, on American affairs and a variety of other subjects, page 82http://books.google.com/books?id=BAkUAAAAIAAJ&pg=PA82:Such feeble arms, to work internal wo!