Denshi Jisho — Online Japanese dictionary

正数 せいすう positive number
Noun 
精髄 せいずい essence; kernel; spirit; pith
Noun, No-adjective 
整斉 せいせい symmetrical
Noun, No-adjective 
正々 せいせい accurate; exact; punctual; neat
Taru-adjective, Adverb taking the 'to' particle 
正正 せいせい accurate; exact; punctual; neat
Taru-adjective, Adverb taking the 'to' particle 
正西 せいせい due west
Noun 
清々 せいせい feel refreshed; feel relieved
Adverb, Noun, Suru verb 
清清 せいせい feel refreshed; feel relieved
Adverb, Noun, Suru verb 
済世 せいせい saving the world; promoting national welfare
Noun 
生生 せいせい lively; growing up
Na-adjective, Noun 
聖跡 せいせき holy site
Noun 
聖蹟 せいせき holy site
Noun 
正切 せいせつ tangent (in trigonometry)
Noun 
正接 せいせつ tangent
Noun, No-adjective 
井泉 せいせん (water) well
Noun 
征戦 せいせん military expedition
Noun, Suru verb 
性腺 せいせん gonad; sexual gland
Noun, No-adjective 
聖遷 せいせん Hegira; Hejira; Hijra
Noun, Obscure term 
精精 せいぜい at the most; at best; to the utmost; as much (far) as possible
Adverb 
凄絶 せいぜつ extremely; violently
Na-adjective, Noun 
悽絶 せいぜつ extremely weird; gruesome; lurid; ghastly
Na-adjective, Noun 
性善 せいぜん intrinsic goodness
Noun 
整然 せいぜん orderly; regular; systematic; well-organized; well-organised; trim; tidy; accurate
Taru-adjective, Adverb taking the 'to' particle 
西漸 せいぜん westward advance
Noun, Suru verb 
凄愴 せいそう pathetic; dreadful
Na-adjective, Noun 
悽愴 せいそう pathetic; dreadful
Na-adjective, Noun 

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