Isan words for visiting family in Northeast Thailand

You land, the cousins pick you up, and somewhere between the airport and Yai’s house the Thai you practised turns into something else. Same warmth, different words. Yai asks a question that ends in บ่. An auntie says แซ่บ and everyone nods. If your family is from the Northeast, you’ve just met Isan. Welcome. Nobody expects you to speak it, and every word you pick up will be noticed.

What is Isan?

Isan, ภาษาอีสาน (phaa-saa ii-saan), is the language of Isan, อีสาน (ii-saan), Thailand’s Northeast. It is very close to Lao: Wikipedia’s article on the language says it “remains essentially the same as the Lao language of Laos”, with differences mainly in spelling and some words. In Thailand it’s usually written informally in Thai script, with no fixed spelling, in texts, letters and social media posts.

It’s also big. Wikipedia cites estimates of 13 to 16 million speakers in 2005 and about 22 million first- and second-language speakers in 2013, and notes that Isan speakers make up almost a third of Thailand’s population. The Thai government officially classes it as a dialect of Thai, while linguistic catalogues such as Ethnologue and Glottolog list it as its own language. Whichever word you use, it’s a whole way of speaking with its own music, food words and jokes, not a “funny accent”. For how Isan sits next to Northern Thai, Southern Thai, Khmer and the rest, see our guide to the languages of Thailand, or find your family’s province on the map of Thailand’s 77 provinces.

Why might your family speak Isan at home?

Because most people in the Northeast do. Wikipedia’s article on the Isan people says about 88% of them habitually speak Isan at home, even though school and official life happen in Standard Thai.

So the “Thai” you heard as a kid may have been Isan, or a mix of both. Lots of families switch between the two in one sentence. Your Thai isn’t wrong if it sounds a bit different from the textbook. It sounds like home. We wrote more about that in-between feeling in life between two homes.

Which Isan words are worth knowing for a family visit?

A small set goes a long way. These are the words in the Reply Thai app’s “A little Isan” cards and Isan notes. Families vary, so if yours says something different, your family is right.

Notice ฮัก and รัก? Isan often has an h sound where Central Thai has an r: รู้, “know”, becomes ฮู้ (huu). Once you hear that swap, a lot of words suddenly make sense. One honest caveat: Isan tones differ from Central Thai, and the app doesn’t mark them. Listen to how your family says these first, then copy them.

What will Yai actually say?

Put the words together and you get the lines you’re most likely to hear on a visit, or on the phone before it:

• กินข้าวแล้วบ่ (gin khaao laew bor): “Eaten yet, or not?” Same caring question as the Central Thai one in have you eaten yet?, with บ่ on the end.
• ไปไสมา (pai sai maa): “Where’ve you been?” Often just a friendly hello, not a real question.
• เฮ็ดหยังอยู่ (het yang yuu): “What are you up to?”
• คึดฮอดหลายเด้อ (khuet hort laai der): “Miss you lots.”
• ฮักหลายเด้อ (hak laai der): a warm “love you lots”.
• บ่ต้องห่วงเด้อ (bor torng huang der): “Don’t worry, okay?”
• บ่ฮู้ (bor huu): “I don’t know.”

You don’t have to answer in Isan. Recognising คึดฮอด and lighting up is already a reply.

What about “I”, “you” and family words?

Isan has its own “I” and “you”: ข่อย (khoi) and เจ้า (jao). Put them together with ฮัก and you get ข่อยฮักเจ้า, “I love you”. They’re everyday words in Isan, but use them only if your family does. With elders, the safe choice is the same as anywhere in Thailand: call them by their family title.

Family words are where households differ most, and the app doesn’t teach Isan-specific ones yet. The Central Thai titles, like ยาย (yaai) for your mum’s mum, are understood everywhere, and your family will happily correct you if they use something else. Our guide to Thai family words has the full ladder.

Will they understand me if I only speak Central Thai?

Very likely, yes. According to Wikipedia, Standard Thai is the only language allowed in school and official settings, and many Isan speakers switch between Isan and Thai depending on who they’re talking to. Plenty of your relatives will switch for you without thinking about it.

The other direction is harder. Wikipedia describes Central Thai and Isan as mutually intelligible “only with difficulty”, because tones, vowels and some everyday words differ. So when the aunties speed up around the table, getting lost is normal, not a failure. Catching บ่, ไส and แซ่บ is a real win.

It’s also worth knowing that Isan hasn’t always been treated kindly. Wikipedia notes that many Thais have associated the language with being “uneducated and backward”, and also describes growing expressions of “Isan-ness” and pride in the region. If you ask Yai to teach you a word, you’re on the side of the pride.

Which Isan food words will you hear?

Food is the easiest way in. ส้มตำ (som tam), green papaya pounded in a mortar with chilli and lime, is believed to have been created by Lao people and is especially loved in Isan. It’s often eaten with ข้าวเหนียว (khaao niao), sticky rice, rolled into a little ball with your fingers.

Then say the word. แซ่บหลาย (saep laai) means “very delicious”, and แซ่บอีหลี is “really delicious”. Lots of Thais say แซ่บ now, wherever they’re from, so it’s a safe first Isan word. And if the speakers at a village party start playing หมอลำ (mor lam), the Lao song and storytelling tradition that is also loved in Isan, over the bamboo แคน (khaen), that may well be Yai’s music.

Planning the trip itself? See our Isan family trip guide: getting there, the village and the food.

Is it okay to be a total beginner?

Completely. Plenty of us grew up hearing Isan without ever being taught it, and starting from a handful of words is still starting. Understanding a little is enough to feel less like a guest. Trying a little, even badly, is a gift, not a test.

If you’re still learning Central Thai, that’s the right foundation: it’s what the whole country shares. Our page on learning Thai to talk to your family covers where to begin, and if the trip is coming up, check which passport to enter Thailand on before you pack.

In Reply Thai, Isan shows up as small “In Isan” notes on lessons like Video call with Yai, and as a short “A little Isan” set of cards with words like these. They’re there to help you recognise what you hear, so the next call, or the drive to the village, feels a bit more like home.

Reply Thai for iPhoneComing soon

Thai words on this page are a draft until a native speaker has reviewed them. Isan varies from province to province and family to family.

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