The Avoiuli alphabet comprises characters equivalent to the letters A–Z, decimal numerals and other symbols, including a range of currency symbols representing the livatu and specific items of traditional value such as pigs and dyed mats. Like the Western orthography used to write Raga, it represents the velar nasal ng and prenasalised consonant ngg using modified forms of the letters n and g respectively, but represents the labiovelar consonants bw, mw and vw using digraphs. Although in some respects it is a relatively straightforward imitation of the Latin alphabet, Avoiuli has a few distinctive features.[3]
Like the sand drawings on which it is based, Avoiuli words are designed to be formed in a single stroke. The script can be written either left-to-right or right-to-left (with the letter shapes reversed, though the majority are symmetrical anyway). It is intended to be written in boustrophedon style, with alternating lines of left-to-right and right-to-left writing, but it is common for it to follow the left-to-right convention of the Latin script.
Capital letters in Avoiuli are similar to lowercase but are enlarged and drawn around a + shaped 'frame', a feature also seen in traditional sand drawings. Capital letters are not used much in everyday writing.
Students learn to write in Avoiuli at Turaga's traditional school at Lavatmanggemu in north-eastern Pentecost, and at affiliated 'custom schools', paying substantial school fees for the privilege. Avoiuli is also used in record-keeping by the Tangbunia indigenous bank.