Devanagari Uu ऊ

Long uu is the sixth letter of the varnamala and the partner of short u, formed at the same place with the lips rounded and differing only in duration. Its vowel sign, like its partner's, hangs below the consonant rather than beside it, distinguished by an additional turn in the stroke; the two are easy to confuse in rapid handwriting and in small print, and distinguishing them is part of learning to read the script accurately. The independent form on this page is used only where the vowel opens a word.

With uu the varnamala completes its opening run of three vowel qualities in short and long pairs: a and aa in the throat, i and ii at the palate, u and uu at the lips. That symmetry is deliberate and is the clearest illustration of what the Sanskrit phoneticians were doing when they arranged the letters. Their order is not historical, not alphabetical in the Semitic sense of a fixed inherited sequence, and not a mnemonic; it is a table of the sounds of the language classified by how the mouth makes them, and it has been recognised since the nineteenth century as one of the earliest systematic phonetic analyses produced anywhere. Long uu is the least frequent of the six, but it appears in common vocabulary and in the lengthened stems of several noun and verb classes.

Sanskrit metre counts syllables as light or heavy, and a long vowel such as uu makes its syllable heavy wherever it falls. The classical metres are built from fixed patterns of light and heavy syllables, and the Vedic metres from syllable counts within which those patterns matter, so vowel length is structural to how the tradition's poetry and liturgy sound. Recitation preserves it: the schools that transmitted the Vedic corpus orally developed permuted recitation styles precisely to prevent quantities and accents from drifting, and the result is that the length distinctions written in Devanagari can be checked against a living recitation practice as well as against a manuscript. It is worth being explicit about what cannot be said here.

The vowels of Sanskrit do not carry individually assigned numerical values in the way Hebrew and Greek letters do under gematria and isopsephy, and no equivalent correspondence is asserted for uu in this atlas. Indian traditions do have systems that turn letters into numbers, the katapayadi scheme used by astronomers and musicians chief among them, but those systems assign values to consonants by position and treat vowels standing alone as carrying none, and they are a separate subject from the varnamala itself. What is recorded for uu is its place in the series, its articulation, its length, and its membership of the fifty-letter garland the Tantric traditions count.