よ is a sentence-ending particle that says “I’m telling you something you don’t know yet.” You add it when you give information, make a recommendation, or warn someone. 電車が来ます is a neutral report; 電車が来ますよ is “Hey, the train’s coming!” — aimed straight at the listener.
よ hands the listener new information. Its partner ね does the opposite: it checks information you both already share.
What does よ mean?
よ marks the information as yours to give and theirs to receive. English has no single word for it, so the translation depends on the situation:
- you know / I’m telling you — informing: この店はおいしいですよ。 (This place is really good, you know.)
- hey / watch out — warning or alerting: 危ないよ！ (Watch out!)
- (really) should — recommending: この映画、面白いですよ。 (You should see this movie.)
- come on — pushing an invitation or request: 行きましょうよ。 (Come on, let’s go.)
Often the best English translation simply drops “you know” and uses tone or an exclamation mark instead.
How to form よ
よ goes at the very end of the sentence, after です/ます or after the plain form.
- Polite: おいしいですよ / 行きますよ / だめですよ
- Casual verb or い-adjective: 行くよ / おいしいよ
- Casual noun or な-adjective: 雨だよ / 静かだよ
- After requests and invitations: 来てよ / 行こうよ / 行きましょうよ
The important detail is in casual speech: い-adjectives never take だ. It is おいしいよ, not おいしいだよ. だ only appears after nouns and な-adjectives.
To combine よ with ね, the order is always よね: 明日は休みですよね (Tomorrow’s a holiday, right?).
When is よ used?
- Answering questions: when someone asks, you have the information. 「トイレはどこですか。」「あそこですよ。」
- Recommending: food, places, films. You know it’s good; they don’t yet.
- Warnings and reminders: 明日はテストですよ。 財布、忘れていますよ。
- Correcting a misunderstanding: 「田中さんは学生ですか。」「いいえ、先生ですよ。」
- Encouraging action: with ましょう or a て-form request.
よ works in both casual and polite speech. With superiors, use it carefully: it can sound as if you are teaching them something.
よ example sentences
この店のラーメンはおいしいですよ。
The ramen at this place is really good.
あ、電車が来ますよ。
Oh, the train's coming!
「駅は遠いですか。」「いいえ、近いですよ。五分ぐらいです。」
"Is the station far?" "No, it's close. About five minutes."
明日は休みだよ。
Tomorrow's a day off, you know.
かさ、忘れていますよ。
You forgot your umbrella.
一緒に行きましょうよ。
Come on, let's go together.
Nuance of よ
Intonation sets the mood. A light, slightly rising よ↗ sounds friendly and helpful: “It’s over there!” A heavy, falling よ↘ can sound insistent or annoyed: “I said it’s over there.” Beginners should keep よ light.
よ can sound pushy. Because よ positions you as the one who knows, using it with a teacher or boss on topics they are expert in can sound like you are lecturing them. With friends and in helpful answers, it sounds warm and natural.
Leaving よ out changes the tone. In an answer, あそこです is a neutral fact, while あそこですよ is friendlier and more engaged. Neither is wrong; よ just adds warmth and emphasis.
そうですよ vs そうですね: when you simply agree with someone, say そうですね. そうですよ means "Yes, that's exactly right — I'm confirming it", which sounds like you are the authority on the matter.
よ vs ね
The two particles look similar in position, but they send information in opposite directions. The full lesson is in ね.
Ask: “Does the listener already know this?” If not, use よ. If they do, use ね. よね blends the two: “I’m telling you, and I think you’ll agree.”
Common mistakes with よ
Learners add だ because they have seen 雨だよ. い-adjectives go straight to よ with no だ.
You are both feeling the heat, so the information is shared. そうですよ sounds like you are correcting or lecturing them.
When よ and ね appear together, よ always comes first.
Is よ on the JLPT?
Yes. よ is JLPT N5 grammar. It is most important in the listening section, where よ often flags the key piece of information in a dialogue — the answer, the correction, or the warning.
- Recognize よ as marking new information for the listener
- Choose よ (new) or ね (shared) in dialogue completion questions
- Attach よ correctly: おいしいよ, 雨だよ, 行きますよ
- Know that the combined form is よね
Practice questions for よ
Show answer
美術館は月曜日は休みですよ。 — The museum is closed on Mondays.
Show answer
あのカフェ、コーヒーがおいしいよ。 — That café has really good coffee.
Show answer
道は危ないよ。 — The road is dangerous!
Show answer
いいえ、田中さんは先生ですよ。 — No, Tanaka is a teacher.
Learning path for よ
Related grammar to review next
- ね — the “shared information” partner; choosing between よ and ね is the core skill.
- でしょう — gives information with less certainty than よ.
- ましょう — ましょうよ turns a suggestion into an enthusiastic push.
- なあ — another ending particle, but for feelings said to yourself rather than to a listener.
- か — the question よ usually answers.
Learn よ with Hane
Hane’s dialogue drills make you choose よ or ね in real replies, so the difference becomes instinct. Start practicing with Hane.
FAQ about よ
What does よ (yo) mean in Japanese?
よ (yo) means “you know; emphasis”. It is JLPT N5 grammar. よ marks the information as yours to give and theirs to receive.
How do you form よ (yo)?
よ goes at the very end of the sentence, after です/ます or after the plain form.
What is the difference between よ and ね?
よ: new information → listener. ね: shared information ↔ both.
What is an example sentence with よ (yo)?
この店のラーメンはおいしいですよ。 — The ramen at this place is really good.