Synonym Nuance VS
How to say "Spread" in Japanese
Both words can translate to "spread", but which should you choose?
Japanese Option A
まんえん
まんえん (man'en)
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 まんえん and 蔓延る.
In Japanese, まんえん (まんえん (man'en)) is typically associated with "spread, prevalence, epidemic" (Syllabus Level: N2) and represents Describes something undesirable.
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 "まんえん"
その病気は急速に全国に蔓延した。
The disease rapidly spread throughout the country.
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: "その病気は急速に全国に蔓延した。" (Meaning: "The disease rapidly spread throughout the country.")
🎉 Correct Answer!
Remember: "まんえん" fits here because it means "spread, prevalence, epidemic" in the context of: "The disease rapidly spread throughout the country.". "蔓延る" represents "to spread; to thrive; to infest (often in a negative sense)".