1) 蔓延まんえん #19,275 Inflections of 蔓延 Class Suru verb Stem Inflected ending ✕ Link copied! Common まんえん [0] Meaning Shirabe Noun Suru verb Intransitive verb spread (e.g. of a disease); rampancy; infestation; proliferation; being widespread 今こん悪性あくせいの風邪かぜがまん延えんしている。 A bad cold is going about now. Kanji 蔓 マン vine, tendril, influence 延 エン prolong, stretching Forms 蔓延#19,275蔓延まんえんまん延#60,441まん延えん蔓衍#300,533蔓衍まんえんまんえんまんえん