Synonym Nuance VS
How to say "Be" in Japanese
Both words can translate to "be", but which should you choose?
Japanese Option A
気を付ける
きをつける (ki o tsukeru)
N4 / CEFR Syllabus
VS
Japanese Option B
流行する
りゅうこうする (ryūkō suru)
N3 / CEFR Syllabus
Nuance Contrast & Translation Difference
When translating "be" into Japanese, you must choose carefully between 気を付ける and 流行する.
In Japanese, 気を付ける (きをつける (ki o tsukeru)) is typically associated with "to be careful, to pay attention" (Syllabus Level: N4) and represents Used to advise caution or remind someone to pay attention. The polite form is 気を付けます.
On the other hand, 流行する (りゅうこうする (ryūkō suru)) maps to "to be in fashion, to be popular, to spread (an epidemic)" (Syllabus Level: N3) and represents The verb form of 流行. Describes the action or state of becoming popular or widespread. Can refer to trends or diseases.. A literal translation of "be" can often sound unnatural to native Japanese speakers if mixed up!
Bilingual Context for "気を付ける"
風邪を引かないように、気を付けてください。
Please be careful not to catch a cold.
Bilingual Context for "流行する"
インフルエンザが流行している。
Influenza is spreading (is流行っている).
Nuance Mastery Quiz
Which Japanese word perfectly fits this blank space?
Fill in the blank: "風邪を引かないように、気を付けてください。" (Meaning: "Please be careful not to catch a cold.")
🎉 Correct Answer!
Remember: "気を付ける" fits here because it means "to be careful, to pay attention" in the context of: "Please be careful not to catch a cold.". "流行する" represents "to be in fashion, to be popular, to spread (an epidemic)".