Frontmatter -- I. General studies -- A dynamic model of part-of-speech differentiation -- Word classes and sentential functions -- Parts of speech as language universals and as language-particular categories -- Kinship verbs -- Syntactic categories, cross-linguistic variation and universal grammar -- When can a language have adjectives? An implicational universal -- Grammaticalisation and part-of-speech systems -- Lexical prototypes as a universal basis for cross-linguistic identification of "parts of speech" -- II. Language-specific studies -- Modal particles in German: Word classification and legacy beyond grammaticalisation -- The Tongan category of preverbials -- Identifying substantival and adjectival pronouns: A case study on German -- Noun and verb in Iroquoian languages: Multicategorisation from multiple criteria -- Numeratives in Mandarin Chinese -- Polynesian multifunctionality and the ambitions of linguistic description -- Index of authors -- Index of languages -- Index of subjects