The way Thais write, address each other and talk about feelings shows the values of daily life in Thailand: respect for age and status, care not to trouble other people, and close ties to Buddhism and the monarchy. This article explains these links and where you can see them.
Where Thai Writing Comes From
Thai has its own alphabet, which comes from the Old Khmer script. Tradition says that King Ram Khamhaeng of Sukhothai created the Thai script in 1283.
The Ram Khamhaeng Inscription, a carved stone with a text dated 1292, is traditionally seen as the earliest Thai writing. Prince Mongkut found it in Sukhothai in 1833. It is kept in the Bangkok National Museum and was added to UNESCO's Memory of the World Register in 2003. Some scholars question whether it is authentic, although most accept it.
Today's alphabet has 44 consonant letters (two of them, ฃ and ฅ, no longer used), 16 vowel symbols that combine into at least 32 vowel forms, and 4 tone marks.
Central Thai has five tones, so one syllable can be five different words: คา (stick), ข่า (galangal), ค่า (value), ค้า (to trade) and ขา (leg) are all "kha". Thais usually understand learners from the context.
How Thai Shows Respect in Everyday Speech
In Thai, the words for "I" and "you" change with age, gender and status, and strangers are often addressed with family words.
Pronouns and family words
| Word | Meaning | How it is used |
|---|---|---|
| phom | I (men) | Polite everyday speech |
| chan / dichan | I (women) | Chan in everyday speech, dichan when more formal |
| khun | you; Mr or Ms | The polite default with adults, also before a first name |
| phi | older brother or sister | Also for anyone a little older, such as a colleague or a shop owner |
| nong | younger brother or sister | Also for younger people, and to call a waiter or shop assistant |
Thais use first names, not family names, so a man called Somchai is "Khun Somchai". Calling a stranger "phi" or "nong" makes a conversation warmer, but as a visitor, "khun" is always a safe choice.
Polite particles: khrap and kha
Men end a sentence with khrap and women with kha. These short words make a sentence polite and soft; a request without them can sound abrupt.
- "Sawatdee khrap" or "sawatdee kha": hello
- "Khop khun khrap" or "khop khun kha": thank you
If you learn only one thing about Thai, learn to add khrap or kha.
Cultural Words Worth Knowing
Kreng jai
Kreng jai means not wanting to trouble or impose on other people. It explains why a direct "no" is rare and why people may not complain or ask for help. If you get a polite, unclear answer, kreng jai is often the reason, so ask again in a friendly way.
Sanuk
Sanuk means fun or enjoyment. Many Thais feel that work, meals and trips should include some sanuk, and a light joke often eases a tense moment.
Mai pen rai
Mai pen rai means "never mind" or "it does not matter". It reflects the wish to keep harmony and let small things go.
Jai: the heart words
Jai means heart or mind, and Thai uses it in many everyday expressions about character and feelings:
| Thai | Literal meaning | What it means |
|---|---|---|
| jai dee | good heart | kind |
| jai yen | cool heart | calm, patient |
| jai ron | hot heart | impatient, quick-tempered |
| jai kwang | wide heart | generous |
| sia jai | spoiled heart | sad, disappointed |
"Jai yen yen" means "calm down", and it is good advice for travellers: stay patient and do not raise your voice.
Regional Languages and Local Identity
Central Thai is the only official language, but more than 60 languages are spoken in Thailand. Many Thais speak a regional language at home, and it is a strong sign of where they come from.
- Isan (Northeastern Thai): about 15 million speakers. It is close to Lao, but everyone in the northeast also understands Central Thai. "Khop jai" (thank you in Isan) is a friendly extra.
- Northern Thai (Kham Mueang): about 6 million speakers in the north, around Chiang Mai.
- Southern Thai (Pak Tai): about 4.5 million speakers in the south.
- Pattani Malay: about 1.1–1.4 million speakers in the far south.
- Hill peoples' languages: Karen has about 400,000 speakers and Hmong about 149,000.
Figures are estimates (2011 ICERD report, Ethnologue, 2010 census). Standard Thai phrases work everywhere.
Royal Language and Respect for the Monarchy
Thai has a special vocabulary, called rachasap, for speaking to and about the royal family. Visitors are not expected to use it.
Respect for the monarchy is also law. Section 112 of the Criminal Code sets 3 to 15 years in prison per count for defaming, insulting or threatening the King, Queen, heir apparent or Regent, and it has been used against foreigners. Do not joke about or criticise the royal family, in person or online.
Queen Sirikit, the Queen Mother, died on 24 October 2025, aged 93. Civil servants wear black mourning until 24 October 2026. The royal cremation ceremonies run from 15 to 19 December 2026 in Bangkok. The cremation itself is at 16:30 on 16 December at Sanam Luang, next to the Grand Palace. Crowds and road closures are likely, so plan sightseeing around the Grand Palace for other days, and wear dark, sober clothes near the Grand Palace.
The national anthem plays in public places, such as parks and stations, at 08:00 and 18:00, and the royal anthem plays before every film in cinemas and before most live shows. Stop and stand still for both. For the national anthem this is now a custom, not a law.
Language and Buddhism
In the 2018 census, 93.5% of people in Thailand were Buddhist, 5.4% Muslim and 1.1% Christian, and the country has about 40,000 temples. Buddhist words are part of daily speech:
- tham bun: to make merit
- wat: temple
- phra: monk, Buddha image, or something sacred
- ubosot: ordination hall
- wihan: assembly hall
- chedi: stupa
Alcohol may not be sold on the five main Buddhist holy days: Makha Bucha, Visakha Bucha, Asanha Bucha, Khao Phansa and Ok Phansa. Duty-free shops at international airports are exempt. The next is Ok Phansa, the end of Buddhist Lent, on 26 October 2026.
Thai Culture on the UNESCO List
UNESCO's intangible heritage list includes Khon masked dance drama (2018), Nuad Thai massage (2019), Nora dance drama of the south (2021), Songkran (2023), and Tom Yum Kung and the kebaya, a nomination shared with other countries (2024).
Thailand has also nominated "Chud Thai", the national costume, in the 2026 cycle; no decision has been made yet. See Thailand's page on the UNESCO intangible heritage site.
Where to See Thai Language and Culture
| Place | What you see | Approximate adult fee (foreigners) |
|---|---|---|
| Bangkok National Museum | The Ram Khamhaeng Inscription | Check on site |
| Grand Palace and Wat Phra Kaew, Bangkok | The royal palace and temple | 500 THB |
| Queen Sirikit Museum of Textiles, inside the Grand Palace | Thai dress and textiles | 150 THB alone, free with a Grand Palace ticket |
| Jim Thompson House Museum, Bangkok | A house museum, guided visits only | 250 THB |
| Ayutthaya Historical Park | Temples of the former capital | 50 THB for Wat Mahathat or Wat Phra Si Sanphet, 220 THB for six temples |
Fees were checked in September 2026. Confirm them on site.
- Grand Palace: open daily 08:30–16:30, but ticket sales stop at 15:30.
- Jim Thompson House: 6 Soi Kasemsan 2, Rama 1 Road (BTS National Stadium, Exit 1), daily 10:00–17:00. Ages 10–21 pay 150 THB, under 10 free. Shoes come off, bags over 20 cm go in lockers, and there is no flash, selfies or video inside.
- Ayutthaya: temples open about 08:00–18:00. The 220 THB ticket is valid for 30 days and is paid in cash at the gate. It costs less than single tickets if you visit five or more of the six temples.
- Traditional shows: Siam Niramit in Bangkok closed for good in 2021. Only the Phuket show still runs.
- Sukhothai: where the inscription was found. See How to Get from Bangkok to Sukhothai.
Getting There by Private Car
Smile Taxi Service transfer fares are fixed, per vehicle (not per person), one way, with expressway tolls included. Tour prices are per vehicle for a day of up to 10 hours.
| Trip | Sedan | SUV | Van |
|---|---|---|---|
| Bangkok to Ayutthaya | 1,500 THB | 1,700 THB | 2,000 THB |
| Ayutthaya to Bangkok | 1,200 THB | 1,500 THB | 2,000 THB |
| Bangkok Tour (full day) | 2,700 THB | 3,000 THB | 3,700 THB |
A VIP van for the Bangkok Tour is 4,000 THB. An English-speaking driver can be requested when booking, subject to availability. You pay the driver in cash (THB) at the end of the trip; if you can only pay by card, message the team for a PayPal payment link (5% fee added). Cancellation is free up to 24 hours before pickup. After that, a cancellation or change costs 25% (less than 24 h), 35% (less than 12 h) or 50% (less than 2 h) of the price, and a no-show 100%, also when you pay the driver in cash (details). For Sukhothai, ask for a quote on WhatsApp or LINE.
Book a sedan from Bangkok to Ayutthaya, see tours and day trips or all routes and prices, and read How to Get from Bangkok to Ayutthaya.
FAQ
Who invented the Thai alphabet?
Tradition credits King Ram Khamhaeng of Sukhothai, in 1283. The inscription linked to him, dated 1292, is in the Bangkok National Museum and on UNESCO's Memory of the World Register.
Can I talk about the Thai royal family?
Speak respectfully or not at all. Section 112 carries 3 to 15 years in prison per count, including for foreigners.
Is Thailand still in mourning?
Official mourning for Queen Sirikit runs until 24 October 2026, and the royal cremation ceremonies take place on 15–19 December 2026.
How much is the Jim Thompson House entry fee?
250 THB for adults, with a guided visit inside the house. It is open daily from 10:00 to 17:00.
To plan a day of Thai culture, message Smile Taxi Service on WhatsApp or LINE.