Denshi Jisho — Online Japanese dictionary

心 しん 1: heart; mind;
2: () spirit; vitality; inner strength;
3: Chinese "Heart" constellation (one of the 28 mansions);
4: (Archaism) friend
Common word, Noun 
初心 うぶ 1: innocent; naive; unsophisticated; inexperienced; green; wet behind the ears;
2: (Noun prefix) birth-
Na-adjective, Noun, No-adjective 
心 こころ 1: mind; heart; spirit;
2: the meaning of a phrase (riddle, etc.)
Common word, Noun 
疑心 ぎしん doubt; suspicion; fear; apprehension
Common word, Noun 
苦心 くしん pain; trouble; anxiety; diligence; hard work
Common word, Noun, Suru verb 
心地 ここち 1: feeling; sensation; mood;
2: (Suffix) sensation of doing (usu. after -masu stem of verb)
Common word, Noun 
心理 しんり state of mind; mentality; psychology
Common word, Noun 
都心 としん city centre (center) (esp. capital city); urban centre; heart of city a metropolis
Common word, Noun 
腐心 ふしん taking pains to; racking one's brains; doing everything one can
Common word, Noun, Suru verb 
無心 むしん 1: innocence;
2: insentient (i.e. plants, inanimate objects, etc.);
3:
4: (Buddhist term) free from obstructive thoughts; () to pester someone (for cash, etc.)
Common word, Na-adjective, Noun, No-adjective 
野心 やしん ambition; aspiration; designs; treachery
Common word, Noun 
炉心 ろしん nuclear reactor core
Common word, Noun 
異心 いしん treachery; intrigue
Noun 
違心 いしん treacherous designs
Noun 
有心 うしん 1: discrimination; historical school of poetic thought;
2: (Buddhist term) attachment; distractions
Noun 
回心 えしん conversion
Noun, Suru verb 
廻心 えしん conversion
Noun, Suru verb 
悪心 おしん nausea; urge to vomit
Noun 
花心 かしん center of a flower (centre); pistils and stamens
Noun 
画心 がしん artistic instinct
Noun 
帰心 きしん homesickness
Noun 
義心 ぎしん chivalrous spirit
Noun 
湖心 こしん center of a lake; centre of a lake
Noun 
私心 ししん selfishness; selfish motive
Noun 
至心 ししん sincerity
Noun 
詩心 ししん poetic sentiment or inspiration; poetic inclination or taste; poem-composing mood; ability to appreciate poetry
Noun 

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