Voiced palatal approximant

The voiced palatal approximant, or yod, is a type of consonant used in many spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is ⟨j⟩. The equivalent X-SAMPA symbol is j, and in the Americanist phonetic notation it is ⟨y⟩. Because the English name of the letter J, jay, starts with [d͡ʒ] (voiced palato-alveolar affricate), the approximant is sometimes instead called yod (jod), as in the phonological history terms yod-dropping and yod-coalescence.

The palatal approximant can often be considered the semivocalic equivalent of the close front unrounded vowel [i]. They alternate with each other in certain languages, such as French, and in the diphthongs of some languages as ⟨j⟩ and ⟨i̯⟩, with the non-syllabic diacritic used in different phonetic transcription systems to represent the same sound.

A voiced alveolo-palatal approximant is attested as phonemic in the Huastec language, and is represented as an advanced voiced palatal approximant ⟨j̟⟩, in some fonts, the sum symbol can be seen next to the letter as [j˖].