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The phonological word or prosodic word (also called pword, PrWd; symbolised as ω) is a constituent in the phonological hierarchy higher than the syllable and the foot but lower than intonational phrase and the phonological phrase. It is largely held (Hall, 1999) to be a prosodic domain in which phonological features within the same lexeme may spread from one morph to another or from one clitic to a clitic host or from one clitic host to a clitic.