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How to Say ‘Be careful (casual request)’ in Japanese

気をつけて

ki o tsuke te

[kee oh tsoo-keh teh]

💬 Usage Tip: [気をつけて] is the casual “Take care/Be careful.” To make it polite for strangers, say [気をつけてください].

🇯🇵 In Japan: If a stranger helps you, you usually wouldn’t say casual [気をつけて] to them unless the vibe is friendly; [お気をつけください] is more polite and common in service settings.

Phrase Breakdown

ki

[kee]

attention; care

In the phrase 気をつけて, 気 refers to “attention/care.” The whole expression means “Be careful.”

Example

夜は気をつけて地下鉄の駅まで歩いてください。

At night, please be careful as you walk to the subway station.

o

[oh]

object marker “o”

Marks 気 as what you “apply” in the idiom 気をつけて (be careful).

Example

足元を気をつけて。

Watch your step.

つけ

tsuke

[tsoo-keh]

attach/apply (stem)

The stem of つける; appears before て to form the te-form つけて in 気をつけて.

Example

気をつけて渡ってください。

Please cross carefully.

te

[teh]

te-form ending (request/connection)

Makes a te-form, often used for soft requests or set expressions like 気をつけて (“Be careful”).

Example

気をつけて行ってください。

Please take care on your way.

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