หนึ่ง
nueng · RTGS: nueng
indefinite in time or position, used informally as an intensifier, used of a single unit or thing; not two or more, the smallest whole number or a numeral representing this number
จำนวนเดียว, คนเดียว, สิ่งเดียว; เดี่ยว; เป็นเอก, เป็นเลิศ
Why low tone?
High-class consonants with Mai Ek always produce Low tone. The tone mark overrides the default tone.
What is a live syllable?
Live syllable (ends with a vowel or sonorant consonant like m, n, ng)
About High-class consonants
High-class consonants include ข, ฃ, ฉ, ฐ, ถ, ผ, ฝ, ศ, ษ, ส, and ห. In live syllables without a tone mark, they produce a rising tone. With mai ek (่), they produce a low tone.