Thai Phrases Every Traveler & Expat Should Know

If you learn only two Thai phrases before you land, make them สวัสดี (sà-wàt-dii) — "hello" — and ขอบคุณ (khàawp-khun) — "thank you." Add the polite particle that matches your gender — ครับ (khráp) if you're a man, ค่ะ (khâ) if you're a woman — and you can already greet, thank, and disarm almost anyone in Thailand. Everything below builds out from those two words: 80 phrases for taxis, markets, restaurants, small talk, and the small emergencies of everyday life.

This is a hub, not a textbook. Skim the deck at the top of the page, keep the ten or so phrases you'll actually use this week, and let the rest wait until you need them. Each card shows the Thai script, a syllable-by-syllable breakdown, and tone-marked romanization, because in Thai the tone is part of the word — not an accent you can shrug off.

The one habit that makes everything polite: ครับ / ค่ะ

Thai marks politeness with a small word tacked onto the end of a sentence, and — this trips up nearly every beginner — it depends on your gender, not the listener's. Men say ครับ (khráp), women say ค่ะ (khâ). The same man says ครับ whether he's talking to his boss or his barber; the particle never switches to match who's in front of you.

These particles are not optional flourishes. Dropping them doesn't make a sentence wrong, but it makes it sound curt — the difference between "thanks" muttered over your shoulder and a warm "thank you" with eye contact. When in doubt, end with the particle. It is the cheapest courtesy in the language and the one Thais notice most.

How the list is organised

The phrases are grouped the way a trip actually unfolds: greetings first, then the yes/no/"a little" survival words, then getting around, food, shopping, small talk, and finally the help-me phrases you hope never to need. A handful — like ไม่เป็นไร (mâi pen rai) and เท่าไหร่ (tâo-rài) — will carry far more of your conversations than the rest, so start there.

The romanization uses tone marks (Paiboon-style) rather than the simpler, tone-less spellings on most road signs. If the little marks over the vowels look unfamiliar, our Paiboon vs RTGS explainer breaks them down in about five minutes, and it's worth the detour before you drill the deck.

Register: how formal do I need to be?

Almost everything here is neutral-polite — safe with a street vendor, a hotel clerk, or your landlord. A few are deliberately casual: ช้าๆ หน่อย (cháa-cháa nɔ̀i), "slow down a bit," is something you'd say to a motorbike-taxi driver, not a monk. As a learner you rarely go wrong by staying polite and adding the particle; Thais are forgiving of a foreigner who is clearly trying to be courteous, and far less forgiving of one who barks orders in English.

Cultural notes that matter more than vocabulary

ไม่เป็นไร (mâi pen rai) is more than "you're welcome." It's a whole attitude — "it's nothing, let it go" — used to wave off thanks, apologies, spilled drinks, and missed buses alike. Learn to hear it as much as to say it.

The wai — palms pressed together, a slight bow of the head — often accompanies สวัสดี and ขอบคุณ. As a foreigner you're never obliged to start one, and you shouldn't wai shop staff or children. But returning a wai you're offered, with a quiet สวัสดีครับ or สวัสดีค่ะ, always reads as respectful.

The smile does real work in Thailand. A request softened with หน่อย (nɔ̀i, "a little") and a smile lands completely differently from the same words said flat. Tone of voice and face are part of the message.

The mistake we hear most — and how to beat it

It's almost always tone, and it's almost always on a word people think they already know. The classic example is ขอบคุณ: the first syllable ขอบ is a low tone (khàawp), starting low and staying there. Reading the bare romanization "khop khun," beginners flatten it into a chirpy mid-tone "kop kun," which a Thai ear hears as slightly off even when the meaning gets through. The same trap catches เผ็ด (phèt, "spicy") and the tone-twins of "mai," where ไม่ (mâi, "not") and ไหม (mái, the question particle) sit one tone apart in the very same sentence.

As of mid-2026, that low-tone ขอบ is still the single correction we give most often. The fix isn't a rule you memorise — it's repetition: hear the word, say it back, and let the tone settle in. That's exactly what spaced repetition is built for, and why every card on this page is a flashcard, not just a line in a list. For the sounds English speakers find hardest, our guide to the most common Thai pronunciation mistakes is the companion piece to this one.

If you're starting completely from zero, the gentler on-ramp is our beginner's guide to your first Thai words. Once the greetings feel automatic, the dedicated how to say hello and how to say thank you deep-dives cover the politeness particles in more detail, and Bangkok expat survival phrases takes the city-specific ones further.