EN
The present article is devoted to a semantic study of the Polish perceptive verb kosztować 'to taste; to try'. First, it describes the shape of the unit of language formed by the verb kosztować - ktoś skosztował coś, and its valency properties. Then, a detailed analysis of the unit ktoś skosztował coś in opposition to two other units of taste perception - ktoś próbuje coś and ktoś smakuje coś is conducted. The article concludes with a proposal for a semantic explication of the examined unit.