How to Say ‘Good night.’ in Japanese
おやすみなさい。
o yasumi nasai
[oh yah-SOO-mee nah-SAI]
Phrase Breakdown
お
o
[oh]
honorific/polite prefix
A polite prefix that makes a word sound more refined or respectful.
おすすめのおは、ことばを丁寧にします。
The o in osusume makes the word more polite.
やすみ
yasumi
[yah-SOO-mee]
rest; sleep
Noun form of やすむ (to rest); with お and なさい it forms the phrase 'good night'.
今日はゆっくりやすみたいです。
I want to rest well today.
なさい
nasai
[nah-SAI]
please do (polite command)
Polite imperative form of the verb 'to do'; used in set phrases or gentle instructions.
はやく ねなさい。
Go to sleep early.
Get the Full Learning Experience
This lesson is just a preview. Download PrettyFluent to practice pronunciation, roleplay conversations, and master vocabulary with spaced repetition.
Pronunciation Feedback
AI-powered feedback on what you say out loud
Spaced Repetition
Retain vocabulary long-term with smart practice
Immersive Roleplaying
Practice real conversations with AI partners
Lessons for Your Situation
Request lessons tailored to your specific needs
What Learners Are Saying
“Teaching in Osaka and I wanted to connect with my students beyond the classroom. The everyday conversation made my Japanese feel natural, not textbook-y.”
Mia S., 25, English Teacher
“I hop cities every few months and this is the only app that actually prepares me for living somewhere, not just visiting. Tokyo was the real test — passed with flying colors.”
James O., 28, Remote Worker
“I tried five different apps before this one. The roleplay conversations are what finally made things click. I actually remember what I learn now.”
Sofia R., 31, Marketing Manager