Redu？？o de sílaba em fala espontanea nas altera？？es específicas de linguagem

background: syllable deletion (sd) frequently occurs in specific language impairment and can indicate a deviant factor in the phonologic acquisition process of these subjects. aim: to verify the occurrence of sd in the spontaneous speech of children with sli and to verify the influence of word extension and syllable stress in this process. methods: participants were 27 children with sli, aged between 3:0 and 5:11 years, in a weekly speech treatment, who presented 50% of correct answers in specific phonology assessment tasks or who presented speech intelligibility within levels that allowed assessment through spontaneous speech. speech samples were obtained during a play interaction situation between the researcher and the child and through speech elicited by the presentation of a picture. the occurrence of sd was analyzed considering the following parameters: extension of the produced words, preference for stressed or unstressed syllables, position of the syllable within the word were sd occurred. results: there was a preference for the production of dissyllabic words (x2 = 72,49; p < 0,001); the occurrence of sd was significantly higher in polysyllabic words (x2 = 11,22; p < 0,004) and on initial syllables (x2 = 34,99; p < 0,001). unstressed syllables were more often reduced (z= -5.79, p <0001). conclusion:the preference for the production of dissyllabic words reassures the difficulty of these children with complex syllabic structures and, in part, explains their spontaneous speech unintelligibility. the predominance of unstressed syllable deletion indicates the preference for producing the nucleus of words, where emphasis is given to the stressed syllable during language expression.