The process of making something legal, the process to legalize, decriminalization.(noun)
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Use "legalization" in a sentence
"These estimates also show that marijuana legalization is a relatively modest piece of the overall impact."
"Marijuana legalization is a much a civil rights issue as blacks and women having the right to vote, as women having equal rights to men, as gay people having the right to marry each other."
"Marijuana legalization is a lot more popular than Republicans right now."