EN
The paper brings the analysis of evidential units such as očividne, evidentne, zjavne (obvi-ously, apparently, evidently) which show semantic extensions from direct visual perception meaning to assumption meaning. This semantic extension can be viewed as an example of the KNOWING is SEEING metaphor which arises on the basis of metonymy. The paper brings the corpus data to show various usage of the given units which can be interpreted as metonymical (from pre-metonymic through weak metonymic to partially metonymic readings). It is shown how metonymy and inference processes cooperate to produce the metaphoric extension TO SEE is TO KNOW.