Frontmatter -- Table of Contents -- About the Editors -- The status of categories in the linguistic theory: Introduction -- Part I. Linguistic Categories - Nouns and Verbs -- Nouns, verbs, and verbal nouns: Their structures and their structural cases -- Nuu-chah-nulth nouns and verbs revisited: Root allomorphy and the structure of nominal predicates -- Noun and verb in the mind. An interdisciplinary approach -- Part II. Linguistic Categories - Nouns and Adjectives -- Categorial ambiguities within the noun phrase: Relational adjectives in Polish -- Degree modification across categories: Nouns vs. adjectives -- Definiteness and degree morphology -- Part III. Problematic Categories - Numerals and Clitics -- What are categories? Adjective-like and noun-like semi-lexical numerals in Polish -- Defining vs. diagnosing linguistic categories: A case study of clitic phenomena -- Name/Author Index -- Subject Index -- Language Index