Synonym Nuance VS
How to say "Spread" in Japanese
Both words can translate to "spread", but which should you choose?
Japanese Option A
普及
ふきゅう (fukyū)
N2 / CEFR Syllabus
VS
Japanese Option B
蔓延る
はびこる (habikoru)
N1 / CEFR Syllabus
Nuance Contrast & Translation Difference
When translating "spread" into Japanese, you must choose carefully between 普及 and 蔓延る.
In Japanese, 普及 (ふきゅう (fukyū)) is typically associated with "spread, popularization, dissemination" (Syllabus Level: N2) and represents Refers to something becoming widely known, used, or available among people.
On the other hand, 蔓延る (はびこる (habikoru)) maps to "to spread; to thrive; to infest (often in a negative sense)" (Syllabus Level: N1) and represents 雑草が伸びるように、望ましくないもの（悪習、病気、デマなど）が広がる様子を表す。負のニュアンスが強い。Describes undesirable things. A literal translation of "spread" can often sound unnatural to native Japanese speakers if mixed up!
Bilingual Context for "普及"
スマートフォンの普及により、人々の生活は大きく変わった。
With the spread of smartphones, people's lives have changed significantly.
Bilingual Context for "蔓延る"
悪い噂が社内に蔓延っている。
Bad rumors are spreading throughout the company.
Nuance Mastery Quiz
Which Japanese word perfectly fits this blank space?
Fill in the blank: "スマートフォンの ＿＿＿ により、人々の生活は大きく変わった。" (Meaning: "With the spread of smartphones, people's lives have changed significantly.")
🎉 Correct Answer!
Remember: "普及" fits here because it means "spread, popularization, dissemination" in the context of: "With the spread of smartphones, people's lives have changed significantly.". "蔓延る" represents "to spread; to thrive; to infest (often in a negative sense)".