If you're aiming at JLPT N5 to N3, this is exactly the stuff worth drilling first. You don't need to memorise everything at once, but you do need a system that makes the chaos feel smaller.
Kanji learning can feel brutal at first, especially when one character seems to have three or four readings and none of them look related. But once you understand the logic behind on, kun, radicals, and a handful of special readings, the whole thing starts to click. Sounds weird, but it's true.
Here's the thing: you don't need to become a human dictionary before the JLPT. You need a method that helps you read real words, spot patterns, and remember the forms that show up in textbooks, manga, station signs, and exam questions. For N5 to N3, that means building your study around what repeats most often, not what looks impressive on a flashcard.
On and Kun Readings: The Core of Kanji Learning
Every kanji learner meets the same wall early on: why does one character change its reading depending on the word? The answer's simple enough. On'yomi is the Sino-Japanese reading, usually tied to older Chinese pronunciation, while kun'yomi is the native Japanese reading attached to Japanese words that already existed before the kanji arrived.
For example, the kanji for mountain is read yama on its own, but in compounds it becomes san, like in Fujisan. Water is mizu alone, but in a compound you may see sui, as in suibun. No joke: this is one of the first real breakthroughs for learners, because it teaches you that kanji aren't just symbols, they're sound patterns tied to word structure.
How to study readings without losing your mind
My tip: don't memorise kanji readings in isolation. Learn them in words. For JLPT N5 and N4, that means pairing each character with two or three high-frequency examples. If you study the kanji for person, first learn hito, then the compound jin in words like Nihonjin. You get meaning, sound, and context at the same time.
No exaggeration: this also helps with listening. Once you know that many two-kanji compounds use on'yomi, you start predicting what you hear. That doesn't make Japanese easy, but it does make it less random. Personally, I think that prediction feeling is one of the best moments in language learning.
Radicals: The Hidden Map Inside Kanji
What most people don't know: radicals aren't just grammar-school trivia, they're a memory system. A radical, or bushu, is a recurring component inside a kanji. Some radicals point to meaning, like the water-related shape in characters for river, ocean, or soup. Others help with categorisation or historical form, even if they don't tell the meaning directly.
Compared with back home, where learners often treat letters as flat shapes, kanji work more like a construction set. If you recognise the parts, you can often guess whether a character has something to do with hand, speech, metal, food, or movement. A great example: the water radical shows up in kanji such as nagare and kai, and the hand-related shapes appear in verbs connected to action or manipulation.
Why radicals matter for JLPT N5 to N3
For N5, radicals help you stop mixing up lookalikes. Think of the difference between simple forms that only change one small stroke. By N4 and N3, radicals become even more useful because the kanji get denser, and the components start telling you where to look for meaning. Hand on heart: if you can identify the right radical quickly, your memory load drops a lot.
That matters in reading practice too. When you're moving through graded readers, NHK Easy articles, or a beginner manga like Yotsuba&, you won't know every character. But spotting radicals lets you guess, mark, and review smarter. It's not magic, just pattern recognition.
40 Special Readings: The Ones That Keep Coming Back
Let's stick with practical study now. A small group of special readings causes a huge amount of trouble, because they don't follow the usual on or kun logic neatly. These include ateji, historical readings, and words where a kanji's reading is preserved because the whole expression is fixed. For N5 to N3, there are around 40 especially useful cases that are worth mastering early because they appear constantly in daily Japanese.
A few common examples: today is kyou, not an obvious reading from the parts; person-counting forms like hitori and futari don't behave like regular numbers; and words such as arigato, taberu, and gakkou often rely on readings you have to learn as whole units. Sounds weird, but it's true. The faster you accept these exceptions, the faster your reading gets.
How to handle special readings in study sessions
I recommend making a separate list for these 40 items and reviewing them in short bursts. Five minutes in the morning, five at night. Use them in sentences, not as isolated entries. For example, tie each one to a JLPT-style word, then read it aloud three times.
A great example: if you are studying time, days of the week, family words, or common school vocabulary, special readings will keep showing up. That's exactly why this topic is so useful for N5, N4, and N3 learners. You aren't memorising trivia, you're removing speed bumps from real reading.
A JLPT-Friendly Kanji Strategy That Actually Sticks
It's early morning in Kyoto. You're on a train, and the signs are moving fast, so you don't have time to decode each character from zero. That's the kind of situation your kanji study should prepare for. Learn readings in compounds, break characters into radicals, and keep a short list of special readings that you review until they feel boring.
My tip: build your study stack in this order, meaning first recognition, then pronunciation, then production. For JLPT N5, focus on basic school, family, direction, and time words. For N4, move into travel, daily actions, and simple opinions. For N3, start reading longer compounds, newspaper-style vocabulary, and common abstract nouns. No wonder, because the exam rewards broad recognition more than perfect calligraphy.
If you want one habit that pays off, read a little every day, even if it's just a short NHK Easy article or a beginner manga page. Write down the kanji you see, circle the radical, and check whether the reading is on, kun, or one of your special cases. That small routine builds real confidence. From my experience, that beats cramming every time.
Frequently Asked Questions
What should I learn first when studying kanji?
Start with the most common readings, basic radicals, and a small set of high-frequency words. That gives you usable reading skill fast.
Are special readings worth memorising early?
Yes. A short list of common special readings saves time because they appear in everyday words and JLPT material.
Can radicals really help with memory?
Yes. Radicals make kanji easier to group, recognise, and recall, especially when similar characters keep getting mixed up.
