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High class consonant · letter 16 of 44

ฐ tho than

ฐ (tho than) is a high-class consonant named after ฐาน, “pedestal”. At the start of a syllable it is /tʰ/, written th in RTGS; at the end of one it is /t̚/ (t).

See it in 61 fontsAll 44 consonants
ฐฐ ฐานtho than · pedestal
Thai name
ฐ ฐาน · tho than
Name word
ฐาน, pedestal
Class
High class
At the start of a syllable
/tʰ/ · RTGS th
At the end of a syllable
/t̚/ · RTGS t
Unicode
U+0E10 · THAI CHARACTER THO THAN
In HTML
ฐ or ฐ
Kedmanee key
Shift + [
Pattachote key
Shift + C

How it sounds

A high-class th, like ถ. It is found mostly in words that came into Thai from Pali and Sanskrit.

5 other letters have the same sound at the start of a syllable: ฑ tho montho (low), ฒ tho phuthao (low), ถ tho thung (high), ท tho thahan (low), ธ tho thong (low).

Class and tone

With no mark, a high-class letter gives a rising tone in a live syllable and a low tone in a dead one. Mai ek gives low and mai tho falling; the other two marks are not used.

Syllables with ฐ and the vowel า
SpellingSyllableTone
No mark, live syllable (long vowel)ฐาRising
No mark, dead syllable, short vowelฐะLow
No mark, dead syllable, long vowelฐากLow
Mai ekฐ่าLow
Mai thoฐ้าFalling
Mai tri–not used with this class
Mai chattawa–not used with this class

The syllables show the rule, not words to learn. The tone rules explain live and dead syllables.

Words with ฐ

ThaiRTGSMeaning
ฐานะthanastatus, position
ฐานข้อมูลthan khomundatabase
รัฐratstate
รัฐบาลratthabangovernment
อิฐitbrick

RTGS shows neither tone nor vowel length; type a word into the font tester to see it in every font.

ฐ in every font

The letter in each of the 61 families you can download here, in its regular style. Looped faces start the stroke from a small circle; loopless ones leave it out. Each card opens the family’s page.