Uvulars are consonants articulated with the back of the tongue against or near the uvula, that is, further back in the mouth than velar consonants. Uvulars may be stops, fricatives, nasals, trills, or approximants, though the IPA does not provide a separate symbol for the approximant, and the symbol for the voiced fricative is used instead. Uvular affricates can certainly be made but are rare: they occur in some southern High-German dialects, as well as in a few African and Native American languages. (Ejective uvular affricates occur as realizations of uvular stops in Lillooet, Kazakh, or as allophonic realizations of the ejective uvular fricative in Georgian.) Uvular consonants are typically incompatible with advanced tongue root, and they often cause retraction of neighboring vowels.
The uvular consonants identified by the International Phonetic Alphabet are:
English has no uvular consonants (at least in most major dialects), and they are unknown in the indigenous languages of Australia and the Pacific, though uvular consonants separate from velar consonants are believed to have existed in the Proto-Oceanic language and are attested in the modern Formosan languages of Taiwan. Uvular consonants are, however, found in many Middle-Eastern and African languages, most notably Arabic and Somali, and in native American languages. In parts of the Caucasus mountains and northwestern North America, nearly every language has uvular stops and fricatives. Two uvular R phonemes are found in various languages in northwestern Europe, including French, some Occitan dialects, a majority of German dialects, some Dutch dialects, and Danish.
The voiceless uvular stop is transcribed as [q] in both the IPA and X-SAMPA. It is pronounced somewhat like the voiceless velar stop [k], but with the middle of the tongue further back on the velum, against or near the uvula. The most familiar use will doubtless be in the transliteration of Arabic place names such as Qatar and Iraq into English, though, since English lacks this sound, this is generally pronounced as [k], the most similar sound that occurs in English.