PrettyFluent
This is just a lesson preview. Get the interactive lesson free on PrettyFluent
⚠️👀

How to Say ‘To be careful (about)’ in Japanese

きをつける

ki o tsukeru

[kee oh tsoo-keh-roo]

💬 Usage Tip: Literal meaning “attach your attention.” Common collocation: [塩分に気をつける] (watch salt).

🇯🇵 In Japan: You’ll hear this constantly in health advice in Japan—simple and friendly, not scolding.

Phrase Breakdown

ki

[kee]

spirit; attention; care

き + を + つける → literally “attach attention,” meaning be careful.

Example

きに注意してください。

Please pay attention.

o

[oh]

(object marker particle)

Marks き as the object in the set phrase きをつける.

Example

食事を見直します。を

I’ll review my diet. (highlighting を)

つける

tsukeru

[tsoo-keh-roo]

to be careful; to watch out; to pay attention

Common advice from doctors: 〜に気をつける (be careful about ~).

Example

塩分に気をつけることが大切です。

It’s important to be careful about salt intake.

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 speech recognition to perfect your accent

Spaced Repetition

Retain vocabulary long-term with smart practice

Immersive Roleplaying

Practice real conversations with AI partners

Custom Scenarios

Request lessons tailored to your specific needs

Download PrettyFluent on the App StoreGet Full Lesson

What Learners Are Saying

Teaching in Osaka and I wanted to connect with my students beyond the classroom. The everyday conversation scenarios made my Japanese feel natural, not textbook-y.

Mia S., 25, English Teacher

Moved to Tokyo and the polite vs. casual speech levels were killing me. This app breaks it all down with real scenarios. My coworkers noticed the difference in weeks.

Kevin Z., 31, Game Developer

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