Commonly Confused Japanese Words Quiz

Don't Just Memorize One Meaning! Master Easily Confused Japanese Words

Memorizing just one dictionary definition is one of the easiest traps to fall into when learning Japanese vocabulary. You see the definition “to know” and assume 知る and 分かる are interchangeable. You see “hot” and use the same word for both the weather and a bowl of soup. You see “borrow” and can't tell whether the action is lending something to someone or borrowing something from someone. These words often share the same translation, but in Japanese, they differ in the objects they refer to, the direction of the action, or their overall nuance. JLPT answer choices are often designed the same way: instead of completely unrelated words, they use another word that you might mistakenly assume means the same thing. So recognizing a word isn't enough. You also need to be able to explain why one word is correct and the other isn't.

The five pairs below are classic examples of easily confused vocabulary that frequently appears on the JLPT, from beginner through intermediate levels. Each section starts by explaining the difference in nuance, followed by a practical example sentence you can actually use.

Top 5 Commonly Confused Japanese Words on the JLPT

1. 知る vs 分かる

知る focuses on “finding out” or “getting to know” something. It describes information or a person becoming part of your knowledge when you didn't know about them before. 分かる, on the other hand, means “to understand” or “to comprehend.” The information may have already been there; what matters is whether you understand it. Both words can sometimes be translated as “to know,” but you use 知っている to say “I know that teacher,” and 分かった to say “I understand now” after hearing an explanation. Using 知った when you mean “I understand” sounds more like you're saying you just found out about something for the first time, rather than that you've understood it.

• 彼の名前を知っています。I know his name.
• 先生の説明を聞いて、やっと分かりました。After listening to the teacher's explanation, I finally understood.

2. 暑い vs 熱い

Both words are pronounced あつい and are often translated as “hot,” but the difference lies in what you're describing. 暑い is used for hot weather, air temperature, seasons, and stuffy or humid conditions in a place. 熱い describes things you can physically touch, such as soup, tea, a hot plate, or bathwater. It can also be used figuratively to describe passionate emotions or an intense gaze. If you write 熱い when you mean “It's hot today,” it sounds as though you're describing the day itself as a hot object. On the other hand, このコーヒーは暑い would make it sound like you're commenting on the weather rather than the coffee.

• 今日はとても暑いですね。It's really hot today, isn't it?
• このスープは熱くて、まだ飲めません。This soup is too hot. I can't drink it yet.

3. 貸す vs 借りる

If you translate both words simply as “borrow,” you lose the direction of the action. Japanese makes a clear distinction between them. 貸す means “to lend”: the owner gives something to someone else, so the subject is the person lending it. 借りる means “to borrow”: the user receives something from someone else, so the subject is the person borrowing it. Both are transitive verbs, not an intransitive-transitive verb pair, so don't try to guess based on their endings. Here's a simple way to remember them: if money or a book is leaving your hands, use 貸す; if money or a book is coming into your hands, use 借りる. Get the direction wrong, and you'll reverse the roles of the people in the sentence.

• 友達に傘を貸しました。I lent my friend an umbrella.
• 図書館で本を借りました。I borrowed a book from the library.

4. 閉まる vs 閉める

This pair is not only easy to confuse but also an example of an intransitive-transitive verb pair. 閉まる is an intransitive verb. It describes a door or window closing on its own or being in a closed state. The subject takes the particle 「が」. 閉める is a transitive verb. It describes someone actively closing something, so the object takes the particle 「を」. A translation like “The door closed” doesn't tell you whether the door was blown shut by the wind or whether you closed it yourself. In Japanese, these two words are essentially asking you one question: Are you describing a state, or are you describing an action? For more examples of particle usage with intransitive-transitive verb pairs, check out the Intransitive and Transitive Verbs Guide.

• ドアが自動で閉まりました。The door closed automatically.
• 出るときにドアを閉めてください。Please close the door when you leave.

5. 尋ねる vs 訪ねる

Both words are pronounced たずねる, and their kanji can also lead learners to associate them with the idea of “seeking” or “looking for” something. 尋ねる means “to ask” or “to inquire.” It's used when asking for directions, someone's name, or a reason. The object is usually information. 訪ねる means “to visit”: physically going somewhere to meet someone or to visit a particular place. Asking for directions at a train station is 尋ねる; going to your teacher's house and sitting down for a chat is 訪ねる. Using the wrong one can make the other person think you've already arrived somewhere, or that you're simply asking a question and haven't left yet.

• 駅員に道を尋ねました。I asked a station attendant for directions.
• 日曜日に先生のお宅を訪ねました。I visited my teacher's home on Sunday.

Take the quiz below to see whether you've memorized more than just the definitions

Choose the level closest to your current Japanese proficiency and see whether you can pick the correct word from a set of similar-looking or similar-meaning choices. If you spend more than three seconds hesitating on a question, go back and review the five comparisons above.