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374 polysyllable<br />

large proportion of a language’s vocabulary is polysemic (or polysemous). The<br />

theoretical problem for the linguist is how to distinguish polysemy (one form<br />

– several meanings) from homonymy (two lexical items which happen to have<br />

the same phonological form). Several criteria have been suggested, such as<br />

etymology (the antecedents of homonymous items would be formally distinct)<br />

and the closeness of the relationship between the meanings in question (the<br />

meanings of homonymous items would be further apart, or unrelated – cf.<br />

the related sense of plain above with the homonyms plane = ‘carpenter’s tool’<br />

and plane = ‘aeroplane’). But all such criteria involve analytic problems, and<br />

the distinction between polysemy and homonymy thus remains a source of<br />

theoretical discussion in linguistics.<br />

polysyllable (n.) A term used in phonetics and phonology to refer to a word<br />

consisting of more than one syllable. Polysyllabic or multisyllabic words are<br />

contrasted with monosyllables.<br />

polysynthetic (adj.) A term which characterizes a type of language sometimes<br />

distinguished in comparative linguistics using structural (as opposed<br />

to diachronic) criteria, and focusing on the characteristics of the word:<br />

‘polysynthetic’ or ‘incorporating’ languages demonstrate morphologically<br />

complex, long word forms, as in the constructions typical of many American<br />

Indian languages, and encountered occasionally in English, in coinages such as<br />

anti/dis/establish/ment/arian/ism/s. The term is opposed to synthetic and analytic<br />

type languages. Some linguists, however, prefer to see such constructions<br />

handled as a complex of agglutinative and fusional characteristics, and do<br />

not regard this category of language as typologically distinct. As always in such<br />

classifications, the categories are not clear-cut: different languages will display<br />

the characteristic of polysynthesis to a greater or lesser degree. The polysynthesis<br />

parameter represents the analysis of polysynthetic forms as a system of predicate–<br />

argument relationships.<br />

polysystemicism (n.) A term used to identify an approach to linguistic analysis<br />

proposed by J. R. Firth (see Firthian), in which different linguistic systems are<br />

set up at different places in structure, no attempt being made to identify the<br />

systems with each other. The approach has been developed primarily in relation<br />

to phonology, where it is known as prosodic analysis. Polysystemic is opposed<br />

to ‘monosystemic’, as in phonemic theories of phonology, where a single basic<br />

phonological unit is used (the phoneme), and the set of phonemes is seen as<br />

a single system of contrasts, applicable to the analysis and transcription<br />

of linear sequences of speech sounds, regardless of the grammatical or<br />

lexical structures involved. In polysystemicism, on the other hand, different<br />

phonological systems are set up as required at different places in the structure<br />

of syllables, words and other units, and within different areas of the<br />

vocabulary or grammar. There is little emphasis on transcription, and a correspondingly<br />

greater emphasis on relating phonology to other levels of linguistic<br />

structure. In this approach, the set of sounds needed to define the contrastive<br />

possibilities at the beginning of words in a language may be quite different from<br />

those required in the middle or at the end of words. There is little evidence of<br />

the need for this analysis in English (apart from occasional contrasts such as /º/

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