| โอ๊ะ | oH | interjection, onomatopoeia | [expressing astonishment] oh! |
ใอ  | aiM | particle | [pronunciation of the Thai vowel, ใ ] |
| ไอ | aiM | noun | vapor; gas; steam; emanations |
| noun | warmth; heat emanation |
| verb | to cough |
| adjective | [pertaining to] coughing; bronchial |
| noun | [การไอ] a cough |
| prefix | [โรคไอ] [prefix for a coughing disease] |
| particle | [pronunciation of the Thai vowel, ไ ] |
| [Thai pronunciation of the English letter,] 'I' |
| noun, loanword, Japanese | [transliterally, 愛] love |
| ไอ้ | aiF | | [alternate spelling of อ้าย] |
| ไอ้ | aiF | interjection | [a derogatory vulgar curse] damn; [a vulgar prefix placed in front of fierce animal names or used when insulting a male] |
| [a (non-derogatory) word used by a pet owner by placing it in front of his/her pet's name to indicate fondness] |
| ไอกรน | aiM grohnM | noun | whooping cough; pertussis |
ไอ้แก่ตัณหากลับ! | aiF gaaeL dtanM haaR glapL | noun, phrase, colloquial, vulgar, idiom, sarcastic-humorous | [used with male] to become repossessed by lust at old age despite senility; used to show detestation. |
| ไอ้แก่หัวงู! | aiF gaaeL huaaR nguuM | noun, phrase, figurative, colloquial, idiom, sarcastic-humorous | [colloquial expletive idiom showing strong disapproval] a dirty rotten tricky old man who likes to seduce or like seducing young girls; a dirty rotten tricky old man who performs an indecent and sexual act against a girl |
| ไอ้ขี้แพ้! | aiF kheeF phaaeH | phrase, colloquial | [showing contempt] "You, loser!" |
| ไอ้เข้ไอ้โขง | aiF khehF aiF khohngR | noun, proper noun, phrase, colloquial | [name of a traditional Thai game/entertainment in the past] |
| ไอ้คนจัณฑาล | aiF khohnM janM thaanM | noun, vulgar | a person who is vicious, mean and dirty; an outcast |
| ไอ้คนบ้ากาม! | aiF khohnM baaF gaamM | noun, vulgar | a sex-crazed pervert |
| ไอ้ควาย | aiF khwaayM | interjection, vulgar | [a vulgar curse or insult] |
| ไอคิว | aiM khiuM | noun, loanword, English | intelligence quotient; IQ |
| ไอ้งั่ง | aiF ngangF | noun, vulgar | [derogatory] "You, goddamn fool (moron, idiot, nincompoop)!" |
| ไอ้งั่งนี่แม่ง...ทำเหี้ยอะไรไม่ได้เรื่องซักอย่าง! | aiF ngangF neeF maaengF thahmM hiiaF aL raiM maiF daiF reuuangF sakH yaangL | example sentence, vulgar | "That motherfucking twit couldn't do any fucking work!" |
| ไอ้จ้อน | aiF jaawnF | noun, colloquial, vulgar | [vulgar derogatory for] penis |
| ไอ้จู๋ | aiF juuR | noun, colloquial | a boy's penis |
| ไอ้เจี๊ยว | aiF jiaaoH | noun, colloquial, vulgar | a boy's penis |
| ไอซ์แลนด์ | ai[s]M laaen[d]M | proper noun, geographical | [ประเทศไอซ์แลนด์] Iceland, a country in Europe |
| ไอซีคิว | aiM seeM khiuM | proper noun, loanword | [Thai transcription of the foreign loanword, "ICQ"] ICQ (I Seek You Instant Messaging) |
| ไอดาโฮ | aiM daaM hohM | proper noun, geographical | Idaho [state of the United States] |
| ไอเดีย | aiM diiaM | noun, loanword, English | [Thai transcription of the foreign loanword, "idea"] |
| ไอแดด | aiM daaetL | noun | warmth of the sun |
| ไอตัว | aiM dtuaaM | noun | body warmth; body heat |
| ไอ้ตัว | aiF dtuaaM | noun, colloquial, vulgar | derogatory term for a male prostitute |
| ไอติม | aiM dtimM | | [alternate spelling of ไอศกรีม] |
| ไอ้โต้ง | aiF dtohngF | noun | a large male chicken (cock) |
| ไอน้ำ | aiM naahmH | noun | steam |
| ไอบูโปรเฟ็น | aiM buuM bprohM fenM | proper noun, formal, loanword, English | [Thai transcription of the foreign loanword, "Ibuprofen"] |
| ไอบูโพรเฟน | aiM buuM phrohM faehnM | | [alternate spelling of ไอบูโปรเฟ็น] |
| ไอพ่น | aiM phohnF | noun | jet (engine) |
| ไอพิษ | aiM phitH | noun | poison gas |
| ไอยเรศ | aiM raehtF | noun | [name of Thai tune] |
| ไอ้ย่า | aiF yaaF | interjection, Chinese | [an exclamation of disgust or dismay] darn!; drat! |
| ไอ๊ย่า | aiH yaaF | | [alternate spelling of ไอ้ย่า] |
| ไอร์แลนด์ | ai[r]M laaen[d]M | proper noun, geographical, adjective | Ireland |
| proper noun, geographical | [ประเทศไอร์แลนด์] Ireland |
| ไอร์แลนด์เหนือ | ai[r]M laaen[d]M neuuaR | proper noun | Northern Ireland |
| ไอรอน | aiM raawnM | noun, adjective, loanword, English | [Thai transcription of the foreign loanword, "iron"] |
| ไอรอนออกไซด์ | aiM raawnM aawkL sai[d]M | noun | iron oxide, Fe2O3, Fe3O4, FeO |
| ไอราวัณ | aiM raaM wanM | | [alternate spelling of เอราวัณ] |
| ไอริช | aiM ritH | adjective, loanword, English | [Thai transcription of the foreign loanword, "Irish"] |
ไอริซ  | aiM risH | noun, adjective | [Thai transcription of the foreign loanword, "iris"] |
| noun | [ดอกไอริซ] (flower) iris |
| ไอรีดเดียม | aiM reetF diiamM | noun | [chemistry] Iridium, Ir, atomic number 77 |
| ไอแลนด์ | aiM laaen[d]M | noun, loanword, English | [Thai transcription of the foreign loanword, "island"] |
| ไอ้เวร | aiF waehnM | interjection, phrase, vulgar | [a vulgar curse] |
| ไอศกรีม | aiM saL greemM | noun, loanword, English | [Thai transcription of the foreign loanword, "ice cream"] |
| ไอศกรีมแท่ง | aiM saL greemM thaaengF | noun | popsicle |
| ไอศุริย | aiM sooL riH yaH | noun | monarchy, kingship, supreme throne |
| ไอศุริยสมบัติ | aiM sooL riH yaH sohmR batL | noun | king's treasures and properties |
