proformecommon nounEtymologyexpandcalque from English, itself composed of pro- and form.Definition1. A tool-word that can take the place of a phrase or a clause. Depending on the nature of the phrase, proforms are classified as pronouns, pro-verbs, pro-adverbs, etc.grammaireexpandHyponymspro-adjectifpro-adverbepronomprophrasepro-verbeTranslationsenglish:pro-formjapanese:代用形