 Lexicalist hypothesis

The Lexicalist Hypothesis is a theoretical concept in linguistics that posits that many grammatical functions and structures are primarily determined by the properties and organization of the lexicon—the mental repository of words and their meanings—rather than by the syntactic structures themselves. Essentially, this hypothesis argues that much of syntax is directly driven by the lexical entries of words, which contain not only the word's meaning but also information about its grammatical behavior, such as its syntactic category (e.g.