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Mid class consonant · letter 26 of 44

บ bo baimai

บ (bo baimai) is a mid-class consonant named after ใบไม้, “leaf”. At the start of a syllable it is /b/, written b in RTGS; at the end of one it is /p̚/ (p).

See it in 61 fontsAll 44 consonants
บบ ใบไม้bo baimai · leaf
Thai name
บ ใบไม้ · bo baimai
Name word
ใบไม้, leaf
Class
Mid class
At the start of a syllable
/b/ · RTGS b
At the end of a syllable
/p̚/ · RTGS p
Unicode
U+0E1A · THAI CHARACTER BO BAIMAI
In HTML
บ or บ
Kedmanee key
[
Pattachote key
Z

How it sounds

A true b, as in English. At the end of a syllable it is an unreleased p: จบ chop.

Easy to mistake for ป po pla and ษ so ruesi: compare them at a large size in the grid below.

Class and tone

Mid-class letters are the only ones that take all four tone marks. With no mark, a live syllable has the mid tone and a dead one the low tone; mai ek gives low, mai tho falling, mai tri high and mai chattawa rising.

Syllables with บ and the vowel า
SpellingSyllableTone
No mark, live syllable (long vowel)บาMid
No mark, dead syllable, short vowelบะLow
No mark, dead syllable, long vowelบากLow
Mai ekบ่าLow
Mai thoบ้าFalling
Mai triบ๊าHigh
Mai chattawaบ๋าRising

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

Words with บ

ThaiRTGSMeaning
บ้านbanhouse, home
บอกbokto tell
บินbinto fly
บ่ายbaiafternoon
จบchopto finish

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

บ 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.