Wiktionary:About Isan

Spelling
Isan can be spelled in Thai as well as in Lao script, however in this Wiktionary only the Thai script is used.

/ɲ/ vs /j/
While in Thai both sounds merged to /j/, spelled with the letter, the distiction is still preserved in Isan.

In order to solve the issue, /j/ is spelled (mid tone class), while /ɲ/ is spelled  or  (depending on the tone class). This reflects historical Thai spelling.

/r/ -> /l/ vs /h/
The spelling of is preserved when pronounced /l/, though an alternative phonetic spelling with  can be given. e.g. Thai &rarr; Isan  – spelling unchanged

When /r/ became /h/ it is spelled as. e.g. Thai &rarr; Isan  – respelled

Tones
Tones are spelled etymologically, resulting in distinct tone rules for Isan. Respelling should only occur, if the tone in Isan has changed, not matching ethymology anymore.

Words shouldn't be respelled to match Thai tone rules, however an alternative spelling (marked as "Thai spelling") can be given, if borrowed into Thai language.

Romanization
In this Wiktionary, the Paiboon Romanization is used, see Isan Romanization.

In headword templates
The pronunciation is automatically generated in headword templates. This doesn't always work, in that case a "phon"-Tag is required.

อย้าน => yâan
 * Marking of tone class prefixes with a dot below (Phinthu)

เพิ่น => pə̄n
 * Marking short vowels that can't carry a Mai Taikhu

จั่งใด => jāng-dai
 * Hyphenation of multisyllabic words

ประเทศ => bpa-têet
 * Phonetic respelling of irregular spelled words