A lexical category is a syntactic category for elements that are part of the lexicon of a language. These elements are at the word level.
Lexical categories may be defined in terms of core notions or 'prototypes'. Given forms may or may not fit neatly in one of the categories (see Analyzing lexical categories). The category membership of a form can vary according to how that form is used in discourse.
There are major and minor lexical categories.