Fromsubstantive +‎-ize.

substantivize (third-person singular simple presentsubstantivizes,present participlesubstantivizing,simple past and past participlesubstantivized)

1. American andOxfordBritish English standard spelling ofsubstantivise.

• (converting into or using as another part of speech)
  
  • adjectivize/adjectivise,adjective,adjectify
  • adverbialize/adverbialise,(rare)adverb,(rare)adverbify,adverbize
  • nominalize/nominalise,substantivize/substantivise,noun,(rare)nounify,substantify,(very rare)substantive
  • verbalize/verbalise,(colloquial)verb,verbify

• English terms suffixed with -ize
• English lemmas
• English verbs
• American English forms
• Oxford spellings

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• English links with manual fragments