| Consonants |
| IPA | Lao | Isan | Phuan[1] | Transliteration[2] | English approximation |
| Syllable-initial consonants |
| b |
ບ | บ | บ | b | boss |
| d |
ດ | ฎ, ด | ฎ, ด | d | done |
| f |
ຝ, ຟ | ฝ, ฟ | ฝ, ฟ | f | food |
| h |
ຫ, ຮ | ห, ฮ | ห, ฮ | h | head |
| j |
ຢ | ย, อย, หย | ย, อย, หย | y | yak |
| k |
ກ | ก | ก | k | scan |
| kʰ |
ຂ, ຄ | ข, ฃ, ค, ฅ, ฆ | ข, ฃ, ค, ฅ, ฆ | kh | can |
| l |
ລ, ຫຼ | ล, ฬ, หล | ร, หร, ล, ฬ, หล | l | law |
| m |
ມ, ໝ | ม, หม | ม, หม | m | much |
| n |
ນ, ໜ | ณ, น, หน | ณ, น, หน | n | not |
| ŋ |
ງ, ຫງ | ง, หง | ง, หง | ng | singer |
| ɲ[3] |
ຍ, ຫຍ | ญ, ย, หย | ญ, ย, หย | gn, ny, y | canyon |
| p |
ປ | ป | ป | p | span |
| pʰ |
ຜ, ພ | ผ, พ, ภ | ผ, พ, ภ | ph | pan |
| r[4] |
ຣ, ຫຼ, ຫຣ | ร, หร | ร, หร | r | trilled r |
| s |
ສ, ຊ | ซ, ศ, ษ, ส | ซ, ศ, ษ, ส | x, s | sue |
| t |
ຕ | ฏ, ต | ฏ, ต | t | stable |
| tʰ |
ຖ, ທ | ฐ, ฑ, ฒ, ถ, ท, ธ | ฐ, ฑ, ฒ, ถ, ท, ธ | th | table |
| tɕ |
ຈ | จ | จ | ch | jean |
| tɕʰ[4] |
— | ฉ, ช, ฌ | ฉ, ช, ฌ | ch | cheese |
| w |
ວ, ຫວ | ว, หว | ว, หว | v, w | way |
| x[5] |
ຂ, ຄ | ข, ฃ, ค, ฅ, ฆ | ข, ฃ, ค, ฅ, ฆ | kh | loch |
| ʔ |
ອ | อ | อ | | the catch in uh'-oh |
| Syllable-final consonants |
| j |
ຍ, ຽ | ย | ย | y, i | toy |
| k[6] |
ກ | ก, ข, ค, ฆ | ก, ข, ค, ฆ | k | tractor |
| m |
ມ | ม | ม | m | dam |
| n |
ນ | ญ, ณ, น, ร, ล, ฬ | ญ, ณ, น, ร, ล, ฬ | ne, n | pin |
| ŋ |
ງ | ง | ง | ng | sing |
| p[6] |
ບ | บ, ป, พ, ฟ, ภ | บ, ป, พ, ฟ, ภ | p | apt |
| t[6] |
ດ | จ, ช, ซ, ฎ, ฏ, ฐ, ฑ, ฒ, ด, ต, ถ, ท, ธ, ศ ,ษ ,ส | จ, ช, ซ, ฎ, ฏ, ฐ, ฑ, ฒ, ด, ต, ถ, ท, ธ, ศ ,ษ ,ส | t | catnip |
| w |
ວ | ว | ว | w, o | down |
| ʔ[6] |
ະ | ะ, – | ะ, – | | flat (Cockney) |
| |
| Tones[7] |
| IPA | Description |
| āː |
Mid [aː˧] |
| àː |
Low [aː˨˩] or [aː˩] |
| âː |
Falling [aː˦˩] or [aː˥˨] |
| a᷆ː or ȁː |
Mid-fall [aː˧˩] |
| áː |
High [aː˦˥] or [aː˥] |
| ǎː |
Rising [aː˨˩˦] or [aː˨˦] |
|
| Vowels |
| IPA | Lao[8] | Isan/Phuan | Transliteration | English approximation |
| Short monophthongs[9] |
| a |
◌ະ, ◌ັ◌ | ◌, ◌ะ, ◌ั◌ | a | between fat and father (short) |
| e |
ເ◌ະ, ເ◌ັ◌ | เ◌ะ, เ◌็◌ | e | mate |
| ɛ |
ແ◌ະ, ແ◌ັ◌ | แ◌ะ, แ◌็◌ | e, ae | bet |
| i |
◌ິ, ◌ິ◌ | ◌ิ, ◌ิ◌ | i | happy |
| o |
ໂ◌ະ, ◌ົ◌ | โ◌ะ, ◌◌ | o | story |
| ɔ |
ເ◌າະ, ◌ັອ◌ | เ◌าะ, ◌็อ◌ | o | off |
| u |
◌ຸ, ◌ຸ◌ | ◌ุ, ◌ุ◌ | ou, u | cool |
| ɯ |
◌ຶ, ◌ຶ◌ | ◌ึ, ◌ึ◌ | u, ue | could (weak sound) |
| ɤ |
ເ◌ິ[10], ເ◌ິ◌ | เ◌อะ | eu, oe | the |
| Long monophthongs |
| aː |
◌າ, ◌າ◌ | ◌า, ◌า◌ | a | bra |
| eː |
ເ◌, ເ◌◌ | เ◌, เ◌◌ | e | play |
| ɛː |
ແ◌, ແ◌◌ | แ◌, แ◌◌ | e, ae | fairy |
| iː |
◌ີ, ◌ີ◌ | ◌ี, ◌ี◌ | i | green |
| oː |
ໂ◌, ໂ◌◌ | โ◌, โ◌◌ | o | go |
| ɔː |
◌ໍ, ◌ອ◌ | ◌, ◌อ, ◌อ◌ | o | dog (long) |
| uː |
◌ູ, ◌ູ◌ | ◌ู, ◌ู◌ | ou, u | cool |
| ɯː |
◌ື, ◌ື◌ | ◌ือ, ◌ื◌ | u, ue | cool, but with the lips unrounded |
| ɤː |
ເ◌ີ, ເ◌ີ◌ | เ◌อ, เ◌ิ◌ | eu, oe | fur |
| Diphthongs |
| ia |
ເ◌ຍ, ◌ຽ◌ | เ◌ีย, เ◌ีย◌ | ia | idea |
| ua |
◌ົວ, ◌ວ◌ | ◌ัว, ◌ว◌ | oua, ua | truant elided into a single syllable |
| ɯa |
ເ◌ືອ, ເ◌ືອ◌ | เ◌ือ, เ◌ือ◌ | ua, uea | No English equivalent |
| Vowels + syllable-final /j, w/ and triphthongs |
| aj |
ໃ◌, ໄ◌ | ◌ัย, ใ◌, ไ◌ | ai | sight |
| aw |
ເ◌ົາ | เ◌า | ao | house |
| ew |
ເ◌ວ, ເ◌ັວ | เ◌ว, เ◌็ว | eo | No English equivalent |
| ɛw |
ແ◌ວ, ແ◌ັວ | แ◌ว, แ◌็ว | ew, aeo | No English equivalent |
| iw |
◌ິວ | ◌ิว | iou, io | duty |
| ɔj |
◌ອຍ, ◌ັອຍ | ◌อย, ◌็อย | oy, oi | choice (American, Northern England) |
| uj |
◌ຸຍ | ◌ุย | oui, ui | Gruyère |
| aːj |
◌າຍ | ◌าย | ay, ai | mind |
| aːw |
◌າວ | ◌าว | ao | cow |
| eːw |
ເ◌ວ | เ◌ว | eo | No English equivalent |
| ɛːw |
ແ◌ວ | แ◌ว | eo, aeo | cow (Australian) |
| oːj |
ໂ◌ຍ | โ◌ย | oy, oi | boy (RP, Australian, NZ) |
| ɔːj |
◌ອຍ | ◌อย | oy, oi | toy, but longer |
| uːj |
◌ູຍ | ◌ูย | ouy, ui | booyah |
| ɤːj |
ເ◌ີຍ | เ◌ย | euy, oei | millefeuille (British) |
| iaw |
◌ຽວ | เ◌ียว | iao | meow |
| uaj |
◌ວຍ | ◌วย | ouai, uai | Uruguay |
| ɯaj |
ເ◌ືອຍ | เ◌ือย | euai, ueai | No English equivalent |
| |
| Other Symbols |
| IPA | Description |
| . |
Syllable break |
|