This article contributes to the discussion of the Dictionary of Dostoevsky’s Language which is based on meaningful words in Dostoevsky’s prose. As is clear, some words are less frequently used and some occur more often. It is argued that a word may have fewer occurrences across the author’s works but it is no less meaningful than highlights. An example in question is the word skladka (crease). Making references to researchers who already took heed of the word in Dostoevsky’s texts, the paper explores the meanings of the word at various periods of the author’s work. It is claimed that the word is most meaningful when Dostoevsky creates the type of man who either hides something or is uncertain about something. This conclusion is confirmed by the private letters wherein the author makes use of the expression ‘someone with a crease’. The word crease thereby adds to the arsenal of words and phrases Dostoevsky actively uses for describing two-facetedness and ambiguity.