The article presents an infological approach to explain the sense of the term knowledge. Originally, the idea of such an approach was developed by Bo Sundgren (1973) and BÃ¶rje Langefors (1980) to define the term information. The concept was based on the assumption that information can be viewed as a name of the context delivered by the message K defined according to (1). By analogy, the term knowledge w can be interpreted as the contents of the set consisting of three elements (2), information I, context (C) of the problems Q under solving, and the experience (D) of the user U. The approach seems to be perspective for manifold analysis of knowledge. Among others, w can be considered as a name of the relation combining the elements in (2), which makes a good background for developing a relational theory of knowledge.