ยูบีซี | yuuM beeM seeM | | [Thai transcription of the foreign loanword, "U.B.C."] UBC, a satellite and cable TV provider in Thailand |
| ยูบีซี เคเบิ้ล ที. วี. | yuuM beeM seeM khaehM beernF theeM weeM | proper noun, phrase, loanword, English | [Thai transcription of the foreign loanword, "UBC cable TV"] a major television network in Thailand |
| ยูโฟ | yuuM fohM | loanword, English | U.F.O.; unidentified foreign object |
| ยูเรเนียม | yuuM raehM niiamM | | [alternate spelling of ยุเรเนียม] |
| ยูเรเนียมออกไซด์ | yuuM raehM niiamM aawkL sai[d]M | noun, loanword, English | uranium oxide, pitchblende, U3O8 |
| ยูเรเนียมเฮกซาฟลูออไรด์ | yuuM raehM niiamM haehkF saaM fluuM aawM rai[d]M | noun | uranium hexaflouride UF6 |
| ยูโร | yuuM rohM | noun | Euro, the currency of the European Union's Eurozone (currency sign €, banking code EUR) |
| ยูโรปา | yuuM rohM bpaaM | proper noun, loanword, English | Europa |
| ยูสเซอร์ | yuutF suuhrM | | [alternate spelling of ยูเซอร์] |
| ยูอาร์แอล | yuuM aa[r]M aaenM | proper noun, loanword, English | [Thai transcription of the foreign loanword, "URL" (Universal Resource Locator)] |
เย่  | yehF | | [an interjection used to express happiness and excitement] yay!; hooray! |
| เย้ | yehH | | [suffix] |
| เยง | yaehngM | verb | poke; prod |
| เยซู | yaehM suuM | proper noun, person, loanword, Latin | [พระเยซู] [Thai transcription of the foreign loanword, "Jesus"] |
| เย็ด | yetH | verb, colloquial, vulgar | to fuck; sexual intercourse; fornicate; copulate |
| noun | [การเย็ด] fucking (the activity); coition |
| adjective, colloquial, vulgar | [น่าเย็ด] (of a person) suitable for sexual intercourse |
| เย็ดครก | yetH khrohkH | verb, colloquial, vulgar, idiom | [a rude reprimand] |
| เย็ดตูด | yetH dtuutL | verb, colloquial, vulgar | [extremely vulgar expression for] male-male anal intercourse |
| เย็ดแม่ | yetH maaeF | interjection, colloquial, vulgar | [a most vulgar curse, one of the worst insults to give to another person] |
| เย็ดเหี้ย | yetH hiiaF | phrase, colloquial, vulgar, idiom | [a vulgar insult] |
| เยน | yaehnM | noun, loanword, Japanese | Yen, the Japanese monetary unit; ¥ |
 เย็น | yenM | attributive verb | [of an object, liquid, or time of day] [is] cool; cold |
| attributive verb | [เย็น ๆ] [of an object, etc.] is very cold |
| early evening hours between 4:00 p.m. and 6:00 p.m. |
| noun | [ความเย็น] coolness; absence of heat |
| attributive verb | [เย็นใจ] [is] relaxed |
| [euphonious suffix] |
| เย็น ๆ | yenM yenM | attributive verb | [of an object, etc.] is very cold |
| เย็นเจี๊ยบ | yenM jiiapH | adjective, verb, intransitive | very cold; ice-cold; icy |
| เย็นใจ | yenM jaiM | attributive verb | [is] relaxed |
| เย็นเฉียบ | yenM chiiapL | adjective | ice-cold |
| เย็นชา | yenM chaaM | adjective | unfriendly |
| เย็นชืด | yenM cheuutF | adjective | cold and tasteless |
| เย็นยะเยือก | yenM yaH yeuuakF | attributive verb | [is] frigid; freezing; cold |
| เย็นเยียบ | yenM yiiapF | adjective | piercingly cold |
| เย็นวันพรุ่งนี้ | yenM wanM phroongF neeH | adverb | tomorrow evening |
| เย็นวันศุกร์เขาจะมาที่นี่ | yenM wanM sook[r]L khaoR jaL maaM theeF neeF | example sentence | "He will come here on Friday evening." |
| เย็นวันอาทิตย์เขาจะไปเดินเล่น | yenM wanM aaM thit[y]H khaoR jaL bpaiM deernM lehnF | example sentence | "He will go for a walk on Sunday evening." |
| เย็นหู | yenM huuR | adjective, verb, intransitive, phrase | [synesthesia] soothing to the ear |
| เย็บ | yepH | verb | to sew |
| verb | [จะเย็บ] will sew |
| verb | [กำลังเย็บ] is sewing |
| เย็บกระดาษ | yepH graL daatL | verb | to staple paper or papers together |
| เย็บกระดุม | yepH graL doomM | verb | sew a button on |
| เย็บปาก | yepH bpaakL | verb, intransitive | to muzzle |
| เย็บผ้า | yepH phaaF | verb | to sew |
| เย็บร้อย | yepH raawyH | verb | to stitch |
| เย็บรอยขาด | yepH raawyM khaatL | verb | mend |
| เยเมน | yaehM maehnM | proper noun, geographical | [ประเทศเยเมน] Yemen |
| เย้ย | yeeuyH | verb, transitive, intransitive, formal | to ridicule; to deride; to jeer; to laugh at |
| เยรูซาเลม | yaehM ruuM saaM laehmM | proper noun, geographical | Jerusalem, the capital city of ประเทศอิสราเอล (Israel) |
| เยรูซาเล็ม | yaehM ruuM saaM lemM | | [alternate spelling of เยรูซาเลม] |
| เยเรวาน | yaehM raehM waanM | proper noun, geographical | Yerevan, the capital city of อาร์เมเนีย (Armenia) |
| เยล | yaehnM | | [alternate spelling of เจล] |
| เยอ | yuuhrM | proper noun, adjective | big |
| verb | to praise |
| เย่อ | yuuhrF | verb | to fight or struggle (with) |
| เยอรมนี | yuuhrM rohmM neeM | proper noun, geographical | [ประเทศเยอรมนี] Germany |
| เยอรมัน | yuuhrnM manM | proper noun, geographical, adjective | German; of Germany |
| proper noun, geographical | [ประเทศเยอรมัน] Germany |
| noun | [ภาษาเยอรมัน] German language |
