Definition of spirantize in US English:

spirantize

verb

  • See spirant

    • ‘The inspiration for the setup was the Greek Consonant Shift, where voiced and voiceless-aspirated stops spirantized but voiceless unaspirated stops remained unchanged.’
    • ‘Since there is no voiced bilabial fricative in English, when you spirantize a [b] in English you often get [v].’
    • ‘As a result, the endings are spirantized since they now follow directly on a vowel sound.’
    • ‘For example, we hold that a language where consonants spirantize in Codas and in the Strong position, but not intervocalically, is not human.’
    • ‘But they did not participate in the later spirantizing and deaffrication processes that characterize the consonant systems of the recorded Iranian languages.’

Pronunciation

spirantize

/-ˌtīz/