Abstract
Word-final /-d/ and syllable-final /-k/ can be pronounced as interdental voiceless fricative [theta] in North Central Peninsular Spanish (NCPS). For example, ciudad ('city') is frequently pronounced as [theta ju'oa theta], and dictado ('dictation') may appear as [di theta'taoo]. Assuming a usage-based approach to phonetic variation, this study is the first to examine a possible connection between both phenomena. Specifically, it explores whether coda /-k/ interdentalization in NCPS is predicted from a speaker's patterns of /-d/ interdentalization. For that purpose, tokens of each segment produced by the same speakers are acoustically analyzed, and multiple regression and mixed-effects binary logistic regression are applied. Results show that /-k/ is realized as [theta] more by speakers who have developed a generalized pattern of /-d/ interdentalization. It is also observed that /-d/ interdentalization patterns still contribute to explain variant choice for /-k/ when other linguistic (stress, preceding vowel, and word frequency) and extralinguistic factors (age, gender, and neighborhood) are considered.