 บุญ  | boonM | noun | good deeds; merit |
| holy; virtuous; pure; sacred |
บุญคุณ | boonM khoonM | noun | a strong sense of obligation or duty, towards parents, for example |
| บุญธรรม | boonM thamM | noun, adjective, phrase, formal, loanword, Pali | [of a child] adopted; fostered |
| บุญราศี | boonM raaM seeR | noun | accumulated merit |
| บุญศรี | boonM seeR | proper noun, person, phrase, formal | Boonsri [a Thai female given name] (beautiful and meritorious) |
| บุญหนักศักดิ์ใหญ่ | boonM nakL sakL yaiL | | [is] powerful |
| บุณมี | boonM meeM | noun, poetic | the full moon |
| บุตโต | bootL dtohM | proper noun | Bhutto (Pakistani political family) |
| บุตร | boot[r]L | noun, formal, loanword, Pali | child, offspring, son or daughter |
| บุตรชาย | boot[r]L chaayM | noun | son |
| บุตรธรรม | boot[r]L thamM maH | noun | son's or daughter's duty |
| บุตรบุญธรรม | boot[r]L boonM thamM | noun | adopted child (legitimately registered) |
| บุตรสาว | boot[r]L saaoR | | daughter |
| บุตรหญิง | boot[r]L yingR | noun | daughter |
| บุตรี | bootL reeM | noun, formal | daughter |
| บุ๋น | boonR | adjective | [แต้จิ๋ว dialect] (pertaining to) civil or administrative (side of the government); 文 |
| บุบ | boopL | verb | to grind or break into small pieces |
| บุพ | boopL | | [alternate spelling of บุพเพ] |
| บุพการี | booL phaH gaaM reeM | noun | parent; ancestor |
| บุพบท | boopL phaH bohtL | noun | [คำบุพบท] [grammar] preposition |
| บุพพ | booL phohpH | | [alternate spelling of บุพเพ] |
| บุพเพ | boopL phaehM | particle, loanword, Pali | [prefix] before; previous; former; initial |
| บุพเพสันนิวาส | boopL phaehM sanR niH waatF | noun, phrase, formal, poetic, loanword, Pali | [a Buddhist belief derived from Brahman idea] the state of a person believed to be living together with another in his or her previous existences |
| บุพเพสันนิวาส | boopL phaehM sanR niH waatF | noun, proper noun, phrase, formal | [name of one of Soontarapon's famous classic songs] |
| บุม | boomM | interjection, loanword, English | [Thai transcription of the foreign loanword, "boom"] |
| บุ๋ม | boomR | attributive verb | [is] dimpled; indented; pock-marked |
| verb | [to make such marks] |
| บุมบุม | boomM boomM | | [vulgar slang] to fornicate |
| บุ้ย | buyF | verb | to frown or pout |
| adjective | frowning; pouting |
| บุราณ | booL raanM | adjective | ancient |
| บุรี | booL reeM | noun | city |
| บุรีรัมย์ | booL reeM ram[y]M | proper noun, geographical | Buriram, a province in northeastern Thailand with a 1995 population of 1,458,288 (rank 7 of 76) |
| บุรุนดี | booL roonM deeM | proper noun, geographical | [ประเทศบุรุนดี] Burundi, a country in Africa |
| บุรุษ | booL rootL | noun | man; male; gentleman; person; people; mankind; humans |
| noun | men's room |
| noun, loanword, Pali | [grammar] person (a tense of pronouns) |
| บุรุษไปรษณีย์ | booL rootL bpraiM saL nee[y]M | noun, formal | mail carrier; mailman; postman |
| บุษบก | bootL bohkL | noun | a portable throne with a roof |
| บุษบง | bootL bohngM | noun | flower; lotus; water-lily |
| a beautiful woman |
| บุษบัน | bootL banM | | [alternate spelling of บุษบง] |
| บุษบา | bootL baaM | noun | flower; blossom |
| บุษราคัม | bootL raaM khamM | noun, proper noun, formal, loanword, Sanskrit | Topaz or yellow sapphire |
| noun, proper noun, person, formal, loanword, Sanskrit | Busarakham [a Thai female given name] (yellow sapphire) |
| บุหรี่ | booL reeL | noun | cigarette |
| บุหรี่ก้นกรอง | booL reeL gohnF graawngM | noun | filtered cigarette |
| บู้ | buuF | attributive verb | [is] flattened; dented; bashed-in |
| บู๊ | buuH | adjective, verb, loanword, Chinese | [แต้จิ๋ว dialect] military; of fighting; fierce; martial; military; valiant; 武 to fight |
| บูคาเรสต์ | buuM khaaM raeht[d]F | proper noun, geographical | Bucharest, the capital city of โรมาเนีย (Romania) |
| บูจุมบูรา | buuM joomM buuM raaM | proper noun, geographical | Bujumbura, the capital city of บุรุนดี (Burundi) |
| บูชา | buuM chaaM | verb | to worship; to adore; to cherish |
| บูชายัญ | buuM chaaM yanM | verb | to offer as a sacrifice |
| บูด | buutL | verb, intransitive | [of food] to spoil; to go bad |
| บูดาเปสต์ | buuM daaM bpaeht[d]L | proper noun, geographical | Budapest, the capital city of ฮังการี (Hungary) |
| บู๊ต | buutH | loanword, English | [Thai transcription of the foreign loanword, "boot"] rugged footwear |
