Denshi Jisho — Online Japanese dictionary

サイン 1: autograph; signature;
2: sign;
3: (Noun) sine
Common word, Noun, Suru verb 
サイケ psychedelic
Na-adjective, Abbreviation 
サイコ psycho
Noun 
サイゼ Saizeriya (Italian restaurant chain)
Noun, Abbreviation, Slang 
最下 さいか the lowest; the worst
Common word, Na-adjective, Noun, No-adjective 
再起 さいき comeback; recovery; restoration; rally; reflexive (in grammar)
Common word, Noun, Suru verb, No-adjective 
細工 さいく work; craftsmanship; tactics; trick
Common word, Noun, Suru verb 
最古 さいこ the oldest
Common word, Noun, No-adjective 
最後 さいご 1: last; end; conclusion; latest; most recent;
2: (Expression) (after -tara form or -ta form followed by "ga") no sooner than; right after (often having negative consequences);
3: (Archaism) one's final moments
Common word, Noun, No-adjective 
最期 さいご one's last moment; one's time of death
Common word, Adverbial noun, Noun 
妻子 さいし wife and children
Common word, Noun 
最多 さいた the most
Common word, Noun 
再度 さいど twice; again; second time
Common word, Adverbial noun, Temporal noun 
財布 さいふ purse; handbag; wallet
Common word, Noun 
細部 さいぶ details
Common word, Noun 
債務 さいむ debt; liabilities
Common word, Noun 
最右 さいう right-most; rightmost
Noun, No-adjective 
細雨 さいう drizzle; misty rain
Noun 
再嫁 さいか remarriage
Noun, Suru verb 
災禍 さいか accident; calamity; mistake; catastrophe
Noun 
裁可 さいか sanction; approval
Noun, Suru verb 
西下 さいか going west; leaving for the west
Noun, Suru verb 
載荷 さいか loading; load
Noun, Suru verb 
彩画 さいが colored picture; coloured picture; painting
Noun 
債鬼 さいき cruel creditor; bill collector
Noun 
再帰 さいき recursive
Noun, No-adjective 

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