Parts of Speech: Particulars, universals and theoretical constructs / Umberto Ansaldo, Jan Don and Roland Pfau -- Word classes in sign languages: Criteria and classifications / Waldemar Schwager and Ulrike Zeshan -- Roots, stems and word classes / Christian Lehmann -- Precategoriality and syntax-based parts of speech: The case of Late Archaic Chinese / Walter Bisang -- Covert word classes: Seeking your own syntax in Tukang Besi / Mark Donohue -- Pragmatic factors in the development of a switch-adjective language: A case study of the Miyako Hirara dialect of Ryukyuan / Yulia Koloskova and Toshio Ohori -- The acquisition of syntactic categories in Jakarta Indonesian / David Gil -- Possible phonological cues in categorial acquisition Evidence from adult categorization /Jan Don and Marian Erkelens -- Lexical semantic constraints on noun roots and noun borrowability / Lynn Nichols -- Degree words, intensification, and word class distinctions in Romance languages / Ventura Salazar-García -- On flexible and rigid nouns / Jan Rijkhoff.