Idioms, conceived as fixed multi-word expressions that conceptually encode non-compositional meaning, are linguistic units that raise a number of questions relevant in the study of language and mind (e.g., whether they are stored in the lexicon or in memory, whether they have internal or external syntax similar to other expressions of the language, whether their conventional use is parallel to their non-compositional meaning, whether they are processed in similar ways to regular compositional expressions of the language, etc.). Idioms show some similarities and differences with other sorts of formulaic expressions, the main types of idioms that have been characterized in the linguistic literature, and the dimensions on which idiomaticity lies. Syntactically, idioms manifest a set of syntactic properties, as well as a number of constraints that account for their internal and external structure. Semantically, idioms present an interesting behavior with respect to a set of semantic properties that account for their meaning (i.e., conventionality, compositionality, and transparency, as well as aspectuality, referentiality, thematic roles, etc.). The study of idioms has been approached from lexicographic and computational, as well as from psycholinguistic and neurolinguistic perspectives.
M. Teresa Espinal and Jaume Mateu
Jie Xu and Yewei Qin
“Special language domain” (SLD) refers to domains or areas of language use in which linguistic rules may be violated legitimately. The SLD is similar to “free trade zones,” “special administrative regions,” and “special economic zones” in which tariff, executive, and economic regulations may be legitimately violated to an extent. Innovative use in SLD is another major resource for language evolution and language change as well as language contact and language acquisition, since some temporary and innovative forms of usage in SLD may develop beyond the SLD at a later stage to become part of the core system of linguistic rules. Focusing on relevant grammatical phenomena observed in the Chinese language, poetry in various forms, titles and slogans, and Internet language are the three major types of SLD, and their violation of linguistic rules is motivated differently. Furthermore, although core linguistic rules may be violated in SLD, the violations are still subject to certain limits and restrictions. Only some language-particular rules can be violated legitimately in SLD; the principles of Universal Grammar, applicable generally for all human languages, have to be observed even in the SLD. The study of a special language domain provides an ideal and fascinating window for linguists to understand language mechanisms, explain historical change in language, and plausibly predict the future direction of language evolution.