The system of French pronouns is distinguished by a variety of forms, among which the indefinite personal pronoun On occupies a special place. Its applications are so diverse that a number of linguists call it "the pronominal chameleon." This is confirmed by numerous translations into Armenian. The given indefinite-personal pronoun, characterized by functional and stylistic diversity, is used in different registers of the language, meanwhile there is a special regularity of its use in French colloquial speech. Therefore, the study of this pronoun should be carried out in two main directions: identifying linguistic and contextual polysemy.