Denshi Jisho — Online Japanese dictionary

蒸す むす to steam; to poultice; to be sultry
Common word, Godan verb with su ending, Transitive verb 
無駄 むだ futility; uselessness; pointlessness
Common word, Na-adjective, Noun 
無恥 むち shameless
Common word, Na-adjective, Noun 
無知 むち ignorance; innocence; stupidity
Common word, Na-adjective, Noun 
無理 むり unreasonable; impossible; overdoing
Common word, Na-adjective, Noun, Suru verb 
群れ むれ group; crowd; flock; herd; bevy; school; swarm; cluster (e.g. of stars); clump; pack (e.g. of dogs)
Common word, Noun 
無き なき -less (often used after one word to modify another, e.g. soulless body); lacking; non-existing
Noun or verb acting prenominally, Suffix, Usually written using kana alone 
無げ なげ appearing as if something doesn't exist; casual; offhand
Na-adjective 
無位 むい lacking rank; ordinary (citizen)
Noun 
無意 むい unintentional
Noun 
無有 むう nonexistence or existence; absence or presence
Noun 
無価 むか priceless
Noun, No-adjective 
無化 むか nullification; annihilation
Noun, Suru verb 
無季 むき (haiku) lacking seasonal references
Noun, No-adjective 
無愧 むき shameless
Noun, Na-adjective 
無機 むき inorganic
Noun, No-adjective 
無愧 むぎ shameless
Noun, Na-adjective 
無垢 むく purity
Na-adjective, Noun 
無碍 むげ free from obstacles
Na-adjective, Noun 
無礙 むげ free from obstacles
Na-adjective, Noun 
無辜 むこ innocent; blameless
Noun, No-adjective 
無始 むし the remote beginnings
Noun 
無私 むし selflessness; unselfish
Na-adjective, Noun, No-adjective 
無字 むじ "No." (Zhaozhou's answer to the koan "Does a dog have Buddha nature?")
Noun, Buddhist term 
生す むす to grow (of moss, etc.)
Godan verb with su ending, Intransitive verb 
産す むす to grow (of moss, etc.)
Godan verb with su ending, Intransitive verb 

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