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Phasa · The First Edition

A daily room for years of Thai immersion

ภาษาคือ
บ้านหลังหนึ่ง

For the learner who means to acquire Thai over years, not weeks — and who recognises craft when they see it.

A language is a house you can live in. · Set in IBM Plex Serif & Sarabun.

The room · reader, dictionary, mining, extension

The reader holds the dictionary inside it.

Tap a word and its entry opens in place — meaning, an example, and the sentence saved to review. Listen along in a native voice, and follow the line as it’s read. English stays out of the way until you ask. 12 readings and counting.

เงินที่พ่อแม่ส่งมาให้

128 words91% understood116 known6 learning6 new

เงินเดือนที่พ่อแม่ส่งมาให้ฉัน เดือนละ 7,000 บาท สำหรับค่าหอ ค่ากิน ค่าเดินทาง สำหรับเด็กกรุงเทพอาจน้อย แต่สำหรับครอบครัวฉัน นี่คือเงินก้อนใหญ่ พ่อกับแม่ของฉันทำนา ปลูกข้าว ปลูกอ้อย ที่กาฬสินธุ์ รายได้ไม่แน่นอน บางปีดี บางปีไม่ดี ขึ้นอยู่กับฝน อยู่กับราคาข้าว 7,000 บาทที่ฉันได้ มาจากแรงของพ่อ ที่ตื่นตี 5 ไปไร่ทุกวัน มาจากแรงของแม่ ที่ทำงานในนา ทั้งที่หลังเริ่มไม่ดี ฉันรู้ ฉันรู้ว่าทุกบาท แลกมาด้วยอะไร แต่บางครั้ง ฉันก็ลืม ซื้อกาแฟแก้วละ 80 บาท ที่ร้านในมหา'ลัย แล้วก็คิด "อร่อยจัง" แล้วก็คิดอีกที "พ่อต้องเก็บข้าวกี่กิโล กว่าจะซื้อกาแฟแก้วนี้ได้" ฉันโทรกลับบ้านทุกอาทิตย์ แม่ถามว่า "เงินพอใช้ไหมลูก" ฉันตอบว่า "พอค่ะแม่ ไม่ต้องห่วง" แม้บางเดือนจะไม่พอจริงๆ ฉันไม่กล้าบอกว่าไม่พอ เพราะรู้ว่าถ้าบอก แม่จะหาทางส่งเพิ่ม อาจจะกู้ อาจจะขายอะไรบางอย่าง ฉันไม่อยากให้เป็นแบบนั้น ฉันสัญญากับตัวเองว่า เมื่อเรียนจบ ทำงานแล้ว ฉันจะส่งเงินกลับให้พ่อแม่ ทุกเดือน มากกว่าที่พ่อแม่เคยส่งให้ฉัน นั่นคือ ทางเดียวที่ฉันรู้จักการขอบคุณ

The Library · a reading each week

New readings every week, read aloud by people we ask by name.

New writing in Thai — a paragraph of memoir, a fragment of news, a short poem — recorded by real Thai people we ask by name, first slowly and then at a natural pace, in voices from across the country. Fresh readings arrive every week; how many you can open depends on your plan. Or bring your own — paste any text, upload any audio, and your library sits beside the curated one.

The extension

Read everything you watch.

Phasa turns the subtitles on YouTube and Netflix into a living text. Tap any word for its reading and meaning, mark it new, learning, or known — and your unknowns stay lit everywhere you watch.

Shipping August. Join the waitlist to get it first.

Works on YouTube, Netflix & more

From the editors · an opening

Why we built a Thai immersion tool

Phasa is a daily environment for people learning Thai over years, not weekends. It is not a phrasebook, not a tutor, not a course in twenty lessons. It assumes you have already decided this matters to you.

We build it in the tradition that runs from Stephen Krashen’s idea of comprehensible input — that you acquire a language by understanding it, not by drilling it — through the immersion movement that followed: AJATT, the Mass Immersion Approach, Refold. The method is not a secret. Read widely and listen constantly to things you almost understand; mine the sentences just past your reach; review them so they stay. What the method has lacked, for Thai, is a tool built for it.

Because Thai deserves one. It has five tones, a writing system the polyglot Stuart Jay Raj calls “a map of the human mouth,” a literature, and an enormous spoken life — and the tools that exist, good as some are, were built for other languages and fitted to Thai afterward. Phasa is built the other way round.

What follows is a walk through the rooms, in the order a serious learner uses them: the reading that arrives each week, the reader that holds the dictionary inside it, the record you keep yourself, and the two reference works underneath it all.

— The Editors

อยุธยา

The cards · a keepsake from what you mined

A keepsake from the moment you mined it.

Every sentence you save becomes a card — the scene it came from, the native voice that read it, the word lit the way you first saw it. Review runs on FSRS, the open-source scheduler that learns how you personally forget and brings each card back at the edge of forgetting. Materially fewer reviews than the old algorithms for the same retention; no streaks, no badges, no scoreboard — just the card, and the moment behind it.

271 sentences mined and counting.

Sleepless Society: Insomnia · E10

หลบหน้า

คิดว่าจะหลบหน้าแม่ได้ตลอดงั้นเหรอ

Do you think you can keep avoiding me? — หลบหน้า: to avoid meeting someone

The tones

Train your ear for the five tones.

Five tones, five meanings for the same handful of sounds — มา, ม้า, หมา are all there, waiting on the pitch you give them. The ear learns this slowly, by hearing the difference again and again. So every tone here is a contour you can see and a voice you can hear, until the five stop blurring into one.

Mid

สามัญ
มาcome

Stays level — the flat one. Just a small dip at the very end.

— no recording yet

Low

เอก
ไข่egg

Starts low and sinks lower. A quiet downward drift, never flat.

— no recording yet

Falling

โท
ไม่not

Lifts, then drops — and the turn comes early. The fall is the story.

High

ตรี
ม้าhorse

Climbs to a peak that lands late. Still rising near the end — not a flat high note.

Rising

จัตวา
หมาdog

Dips down first, then sweeps up. A smooth U.

Learn how the tones work →
The shadowing room

Say it the way they say it.

You learned to hear the tones; now you learn to make them. Thai shadowing means saying a sentence back the moment it lands — the rhythm, the melody, the stress — until your mouth knows the shape of it. Four rungs take you from repeating-with-text to speaking along with only the native voice.

  1. Listen & repeat — with the text

    Listen, then repeat — match the rhythm, not just the words.

  2. Listen & repeat — sound only

    No text this time. Repeat what you hear.

  3. Shadow along

    🎧 Headphones recommended. Play it and speak along — at the same time, don't wait.

  4. Prosody — melody & tone

    Forget the words. Match the melody — the rises, the falls, the stresses.

A line to shadow

คิดว่าจะหลบหน้าแม่ได้ตลอดงั้นเหรอ

Do you think you can keep avoiding me?

— no recording yet
In the app● Record your takeClumsyGetting thereSmooth
The living script

Learn to read Thai.

Every letter, by tone class — tap to hear it.

The consonants, vowels and numerals — tap any glyph to see it in both Thai hands, hear it where a recording exists, and watch how it is written.

Pho samphao
// · ph
Low class

Two faces, one alphabet. Most apps hide that the choice exists.

Thai is written in two contemporary forms — looped, the traditional hand with small terminal loops that Thai children meet first, and loopless, the modern face on signs and screens. Stuart Jay Raj argues the writing system is not arbitrary but logical — a map of where sounds are made in the mouth — which is why Phasa teaches it properly rather than asking you to skip it. Drag to watch the loops open and close; your choice persists across the reader, the dictionary, and the alphabet.

phaa-sǎa
language
sà-wàt-dii
hello
khɔ̀ɔp-khun
thank you
jai
heart, mind

The same words, top loops opened and closed. Switching is one of the small acts of respect the product is built on.

The dictionary

Open while you read, open on their own.

phasa.app/dictionary

A Thai–English dictionary, hand-curated.

Try

Most Thai dictionaries give you a word. This one is being built to give you the language around it.

Native audio, word by word

Native speakers are recording every one of the ten thousand most common Thai words — so you hear the tone, not a guess at it. Added continuously as the list is built.

Real sentences, real voices

Every word grows example sentences drawn from Phasa’s readings — spoken by the same native voices — so you meet each word in context, not in isolation. The library deepens every week.

Built to the depth of the largest open Thai lexica and hand-curated daily, the Phasa dictionary is searchable three ways — by the Thai word, by its English meaning, or by what a word contains. Paste a whole passage and it comes apart into real words, each one tap-ready. It’s the reference that opens while you read, and stands on its own when you don’t.

The membership

Open to read. Membership to keep what you build.

The dictionary and sample readings are open to everyone. Membership adds the full library, every voice, the tools, and mining from anywhere — with your progress saved.

Monthly$12per month
Annual$9per month, billed yearly
See what’s included

The invitation

ห้องสำหรับ
ภาษาไทยของคุณ

A daily room for your Thai. Open it once, and come back every morning.

Sign in to keep a record of your progress. Until then, the dictionary and sample readings are open — no account, no card on file.

Free to start. No card needed.

A Thai spirit house (ศาลพระภูมิ) with offerings of fruit and water among plants and an old wall, Chiang Mai.
ศาลพระภูมิ · เชียงใหม่Photograph · Phasa