Verb: unionize 'yoon-yu,nIz [N. Amer], 'yoo-nee-u,nIz [Brit]- Form, join, or organize a labour union
"The factory workers voted to unionize";
- unionise [Brit], organize, organise [Brit]
Derived forms: unionizing, unionizes, unionized
Type of: fall in, join
Encyclopedia: Unionize