Fricatives: The Hissing and Buzzing Sounds of Language

Fricatives are consonants produced by forcing air through a narrow constriction in the vocal tract, generating turbulent noise. They range from the voiceless sibilant hiss of /s/ in sip to the soft bilabial buzz of /β/ in Spanish vino, from the pharyngeal rasp of /ħ/ in Arabic to the back-of-the-throat /x/ in German Bach or Scottish loch. Among all consonant types, fricatives show the greatest diversity of place and quality across the world's languages.

Sibilants and Non-Sibilants

Fricatives subdivide into sibilants—those produced with a high-pitched, strident hiss—and non-sibilants, which are quieter and less salient. Sibilants like /s/, /z/, /ʃ/ (shoe), /ʒ/ (measure), and the affricates /tʃ/ and /dʒ/ owe their loudness to the way the airstream strikes the teeth after leaving the point of constriction. Non-sibilants like /f/, /v/, /θ/ (think), /ð/ (the), and /x/ lack this tooth interaction and sound gentler. See each symbol with audio on our IPA Chart.

The Cross-Linguistic Distribution of Fricatives

Nearly every language has at least one fricative, but the distribution is not even. Labiodental fricatives /f/ and /v/ are among the most common globally, yet they are surprisingly absent from many languages in East Asia and sub-Saharan Africa. The dental fricatives /θ/ and /ð/ are rare worldwide despite being common in English, Arabic, and Greek. Languages in the Caucasus stack up strikingly large fricative inventories—Georgian distinguishes several uvular and pharyngeal fricatives that are unknown in most European traditions.

Cross-language surveys from databases like PHOIBLE, which underlies our own data, show that fricative inventories correlate with overall inventory size: languages with large phoneme counts tend to have richer fricative series. Visit our inventory rankings to explore which languages make the most varied use of fricatives, and compare how two specific languages handle fricative contrasts on the English–German comparison page.