Definitions of unionize
  1. verb
    recruit for a union or organize into a union
    “We don't allow people to come into our plant and try to unionize the workers”
    synonyms: unionise
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    type of:
    enrol, enroll, enter, inscribe, recruit
    register formally as a participant or member
  2. verb
    form or join a union
    “The auto workers decided to unionize
    synonyms: organise, organize, unionise
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    type of:
    fall in, get together, join
    become part of; become a member of a group or organization
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