Third-person singular simple present indicative form of unionize.(verb)
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Use "unionizes" in a sentence
"The question I ask is this: As contract negotiations stall and strikes loom at United and American, as Frontier unionizes and Virgin America attempts to, how will we as consumers respond?"
"If you think the Transportation Security Administration is dysfunctional and unpopular now, wait until it unionizes."
"If you think TSA is dysfunctional and unpopular now, wait until it unionizes."