Thaana, like Arabic, is written right-to-left. It also indicates vowels with superscripts (or, in the case of /i/ and /i:/, subscripts). Each letter must carry a vowel or a sukun (which indicates "no vowel"). The letter alifu has three main uses: It can act as a carrier for a vowel with no preceding consonant; when it carries a sukun, it indicates gemination (lengthening) of the following consonant; and if alifu+sukun occurs at the end of a word, it indicates that the word ends in /eh/.
Thaana occupies Unicode codepoints 1920-1983 (hexadecimal 0780-07BF), supported natively on Windows XP. (ed. note: please note other operating systems that support Thaana, I don't know if any others exist)
| Grapheme | HTML Unicode | Name | Romanization | SAMPA value |
| ހ | &1920; | HAA | h | /h/ |
| ށ | &1921; | SHAVIYANI | sh | /S/ |
| ނ | &1922; | NOONU | n | /n/ |
| ރ | &1923; | RAA | r | /r/ |
| ބ | &1924; | BAA | b | /b/ |
| ޅ | &1925; | LHAVIYANI | lh | /l'/ |
| ކ | &1926; | KAAFU | k | /k/ |
| އ | &1927; | ALIFU | varies - see article | n/a |
| ވ | &1928; | VAAVU | v | /v/ |
| މ | &1929; | MEEMU | m | /m/ |
| ފ | &1930; | FAAFU | f | /f/ |
| ދ | &1931; | DHAALU | dh | ? |
| ތ | &1932; | THAA | th | ? |
| ލ | &1933; | LAAMU | l | /l/ |
| ގ | &1934; | GAAFU | g | /g/ |
| ޏ | &1935; | GNAVIYANI | gn | /ñ/ |
| ސ | &1936; | SEENU | s | /s/ |
| ޑ | &1937; | DAVIYANI | d | /d/ |
| ޒ | &1938; | ZAVIYANI | z | /z/ |
| ޓ | &1939; | TAVIYANI | t | /t/ |
| ޔ | &1940; | YAA | y | /y/ |
| ޕ | &1941; | PAVIYANI | p | /p/ |
| ޖ | &1942; | JAVIYANI | j | /dZ/ |
| ޗ | &1943; | CHAVIYANI | ch | /tS/ |
| ޘ | &1944; | TTAA | Arabic-to-Dhivehi transliteration characters | |
| ޙ | &1945; | HHAA | ||
| ޚ | &1946; | KHAA | ||
| ޛ | &1947; | THAALU | ||
| ޜ | &1948; | ZAA | ||
| ޝ | &1949; | SHEENU | ||
| ޞ | &1950; | SAADHU | ||
| ޟ | &1951; | DAADHU | ||
| ޠ | &1952; | TO | ||
| ޡ | &1953; | ZO | ||
| ޢ | &1954; | AINU | ||
| ޣ | &1955; | GHAINU | ||
| ޤ | &1956; | QAAFU | ||
| ޥ | &1957; | WAAVU | ||
| ައ | &1958; | ABAFILI | a | /a/ |
| ާއ | &1959; | AABAAFILI | aa | /a:/ |
| ިއ | &1960; | IBIFILI | i | /i/ |
| ީއ | &1961; | EEBEEFILI | ee | /i:/ |
| ުއ | &1962; | UBUFILI | u | /u/ |
| ޫއ | &1963; | OOBOOFILI | oo | /u:/ |
| ެއ | &1964; | EBEFILI | e | /e/ |
| ޭއ | &1965; | EYBEYFILI | ey | /e:/ |
| ޮއ | &1966; | OBOFILI | o | /o/ |
| ޯއ | &1967; | OABOAFILI | oa | /o:/ |
| ްއ | &1968; | SUKUN | varies - see article | n/a |
| ޱ | &1969; | NAA | ? | ? |
External links: A brief description of Thaana is available at this website