Voicelessness

In linguistics, voicelessness is the property of sounds being pronounced without the larynx vibrating. Phonologically, it is a type of phonation, which contrasts with other states of the larynx, but some object that the word phonation implies voicing and that voicelessness is the lack of phonation. The International Phonetic Alphabet has distinct letters for many voiceless and modally voiced pairs of consonants (the obstruents), such as [p b], [t d], [k ɡ], [q ɢ], [f v], and [s z]. Also, there are diacritics for voicelessness, and , which is used for letters with a descender. Diacritics are typically used with letters for prototypically voiced sounds, such as vowels and sonorant consonants: [ḁ], [l̥], [ŋ̊]. In Russian use of the IPA, the voicing diacritic may be turned for voicelessness, e.g. ṋ. Sonorants are sounds such as vowels and nasals that are voiced in most of the world's languages. However, in some languages sonorants may be voiceless, usually allophonically. For example, the Japanese word sukiyaki is pronounced [sɯ̥kijaki] and may sound like [skijaki] to an English speaker, but the lips can be seen to compress for the [ɯ̥]. Something similar happens in English words like peculiar [phə̥ˈkj̊uːliɚ] and potato [phə̥ˈtheɪ̯ɾoʊ̯]. Voiceless vowels are also an areal feature in languages of the American Southwest (like Hopi and Keres), the Great Basin (including all Numic languages), and the Great Plains, where they are present in Numic Comanche but also in Algonquian Cheyenne, and the Caddoan language Arikara. Sonorants may also be contrastively, not just environmentally, voiceless. Standard Tibetan, for example, has a voiceless /l̥/ in Lhasa, which sounds similar to but is less noisy than the voiceless lateral fricative /ɬ/ in Welsh; it contrasts with a modally voiced /l/. Welsh contrasts several voiceless sonorants: /m, m̥/, /n, n̥/, /ŋ, ŋ̊/, and /r, r̥/, the last represented by "rh". In Moksha, there is even a voiceless palatal approximant /j̊/ (written in Cyrillic as jh) along with /l̥/ and /r̥/ (written as lh and rh).