เก้า
“เก้า” (као) — nine in Thai. Numeral, level A1, topic — numbers and counting. The tone falls, a long "aa". It argues with khao, "he", in tones alone: the numeral falls, the pronoun rises. In a live sentence: “เก้า โมง เย็น” — At nine in the evening. Written with the characters เ, ก, ้, า. One of 57 words in the set “numbers and counting” in the Thai course.
In short
| Written in Thai | เก้า |
| Read in Latin letters | као |
| Translation | nine |
| Part of speech | numeral |
| Level | A1 |
Why it looks that way
The tone falls, a long "aa". It argues with khao, "he", in tones alone: the numeral falls, the pronoun rises
A word with a story stays in memory longer than one learned as a “spelling — translation” pair: memory holds on to meaning, not to a string.
In a live sentence
A single word almost never appears alone in conversation. A sentence shows where it fits and what stands next to it.
- เก้า โมง เย็นкао монг йенAt nine in the evening
Nearby words: numbers and counting
A price, the change, a house number, the time you agreed on, the floor. Numbers are the first thing you have to catch by ear — and the first thing people say fast.
- หนึ่งнынгoneA classifier must follow the number: nueng khon — "one person", nueng kaeo — "one glass". A bare nueng does not live in speech about things
- สองсонгtwoThai borrowed its numerals twice: the native "two" and the bookish song stand in a row — in speech people say song
- สามсамthreeNumber plus classifier, always a pair: saam khon — "three people". The classifier is chosen by the object, not by the number
- สี่сиfourSounds like the word "to die" said with a different tone, so hospitals and hotels often skip fours: after the third floor comes the fifth
- ห้าхаfiveThe tone falls. Further along the count the classifier is obligatory: haa kaeo — "five glasses"
- หกхокsixThe tone is low. The clock is told through mong: hok mong — "six o'clock", literally "six strikes"
- เจ็ดджетsevenNot "eight": that is paet. The Thai days of the week are named after colors, and Sunday is the red day — but the count is one for everything
- แปดпэтeightThe tone falls. The lucky number: it sounds like the word "to prosper", so Thais pick eights first in phone numbers and addresses
- สิบсипtenThe final p is not released: sip, not sipa. Everything above ten is assembled from it: sip et — eleven, literally "ten one"
- สิบ เอ็ดсип этelevenLiterally "ten one": tens are added together, and the rule holds to the very end of counting. Et is a special "one" reserved for the end of a number
Test yourself
Five questions from the same set — “numbers and counting”. Recalling a spelling from meaning is harder than knowing a familiar word on sight, and therefore more useful.
- How do you say “nine” in Thai?
The tone falls, a long "aa". It argues with khao, "he", in tones alone: the numeral falls, the pronoun rises
- How do you say “seven” in Thai?
Not "eight": that is paet. The Thai days of the week are named after colors, and Sunday is the red day — but the count is one for everything
- How do you say “three” in Thai?
Number plus classifier, always a pair: saam khon — "three people". The classifier is chosen by the object, not by the number
- How do you say “eleven” in Thai?
Literally "ten one": tens are added together, and the rule holds to the very end of counting. Et is a special "one" reserved for the end of a number
- How do you say “six” in Thai?
The tone is low. The clock is told through mong: hok mong — "six o'clock", literally "six strikes"
How not to forget this word
Reading a word and remembering it are different jobs. A day later, little survives of a single reading — and that is not bad memory, that is how memory works.
- This has been tested on foreign words too. The difference shows up most when you test yourself a few days later rather than straight away.checked many timesKim & Webb, 2022, Language Learning 72(2) · 48 experiments, 3,411 participants, 98 comparisons.
- Recalling beats re-reading. Covering the translation and trying to remember it does more than reading it ten more times.checked many timesAdesope, Trevisan & Sundararajan, 2017, Review of Educational Research 87(3) · 188 experiments, 272 comparisons. g = 0.61; against plain re-reading 0.51, against passive review 0.93.
- An answer you worked out yourself sticks better than one handed to you.checked many timesBertsch et al., 2007, Memory & Cognition 35(2) · 86 studies, 445 comparisons, d = 0.40.
Frequently asked
How do you say “nine” in Thai?
«เก้า», read “као”. In a live sentence: “เก้า โมง เย็น” — At nine in the evening. Numeral, level A1, from the set “numbers and counting”; written with the characters เ, ก, ้, า.
How is “เก้า” written in Latin letters?
као. This is a practical spelling — you need it to read aloud and be understood, not to meet an academic standard.
Why does this word look the way it does?
The tone falls, a long "aa". It argues with khao, "he", in tones alone: the numeral falls, the pronoun rises. A word with a story stays in memory longer than a “spelling — translation” pair: memory holds on to meaning, not to a string.