Denshi Jisho — Online Japanese dictionary

精液 せいえき semen
Common word, Noun, No-adjective 
声援 せいえん encouragement; cheering; support
Common word, Noun, Suru verb 
西欧 せいおう Western Europe
Common word, Noun, No-adjective 
政界 せいかい political world
Common word, Noun 
正解 せいかい correct; right; correct interpretation (answer, solution)
Common word, Noun, Suru verb 
性格 せいかく character; personality; disposition; nature
Common word, Noun 
正確 せいかく accurate; punctual; exact; authentic; veracious
Common word, Na-adjective, Noun 
生活 せいかつ living; life (one's daily existence); livelihood
Common word, Noun, Suru verb 
生還 せいかん returning alive; (baseball) reaching the home plate
Common word, Noun, Suru verb 
静観 せいかん watchful waiting; careful supervision
Common word, Noun, Suru verb, No-adjective 
声楽 せいがく vocal music
Common word, Noun, No-adjective 
請願 せいがん petition
Common word, Noun, Suru verb, No-adjective 
逝去 せいきょ death
Common word, Noun, Suru verb 
制御 せいぎょ control; governing; checking; suppression; repression; restraint; mastery; management
Common word, Noun, Suru verb 
政経 せいけい politics and economics
Common word, Noun 
生計 せいけい livelihood; living
Common word, Noun 
清潔 せいけつ 1: clean; hygenic; sanitary;
2: pure; virtuous; immaculate
Common word, Na-adjective, Noun 
政権 せいけん (political) administration; political power
Common word, Noun 
政見 せいけん political views
Common word, Noun 
制限 せいげん restriction; restraint; limitation; limit
Common word, Noun, Suru verb 
性交 せいこう sexual intercourse
Common word, Noun, Suru verb, No-adjective 
性向 せいこう inclination; tendency; nature; character
Common word, Noun 
性行 せいこう character and conduct
Common word, Noun 
成功 せいこう success; hit
Common word, Noun, Suru verb 
精巧 せいこう elaborate; delicate; exquisite
Common word, Na-adjective, Noun 
製鋼 せいこう steel manufacture
Common word, Noun, Suru verb 

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