Th-alveolarization

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It has been suggested that Th-alveolarization, Th-fronting, Th-debuccalization, Th-stopping and Then-thyn split be merged back to Phonological history of English dental fricatives. (Discuss)

Th-alvealarization is a process that occurs in some African varieties of English where the dental fricatives /ð, θ/ merge with the alveolar stops /z, s/. It is also very common amongst native speakers of French (which has no sound comparable to ð or θ) when speaking English, to the point of being a stereotype.

For some speakers of African American Vernacular English, /θ/ is alveolarized to /s/ when it occurs at the end of a syllable and within a word before another consonant leading to such pronunciations as the following.^[1]