prophrasecommon nounEtymologyexpandcalque from English pro-sentence composed of pro- "pro-" and sentence "sentence".Definition1. Function word that can take the place of a sentence. For example, when answering the question Are you English?, one can say the pro-sentence no replacing I am not English. In French, pro-sentences can also be used as clauses, as in I think not.grammaireexpandHyperonymproformeTranslationsenglish:pro-sentencejapanese:文代用形