Denshi Jisho — Online Japanese dictionary

レイ 1: lei;
2: ray;
3: lay
Common word, Noun 
令 れい command; order; dictation
Common word, Noun, Noun suffix 
例 れい 1: custom; practice; habit; usual;
2: said; aforementioned;
3: instance; example; case; illustration; usage;
4: precedent;
5: annual
Common word, Noun, Prefix, No-adjective 
礼 れい thanking; expression of gratitude
Common word, Noun 
零 れい zero; nought
Common word, Noun, No-adjective 
霊 れい soul; spirit; departed soul; ghost
Common word, Noun 
冷 れい 1:
2: (Obscure term) cold; cool; (Noun) (Abbreviation) (Obscure term) cold sake
Na-adjective, Noun 
鈴 れい bell (often globular)
Out-dated or obsolete kana, Noun 
齢 れい instar
Noun 
令む しむ to make happen (old causative verbal ending)
Godan verb with mu ending, Auxiliary verb, Usually written using kana alone, Archaism 
レイプ rape
Common word, Noun, Suru verb 
レイン 1: lane;
2: rain;
3: (Abbreviation) reinforcement
Common word, Noun 
レイズ raise
Noun 
レイブ rave
Noun 
レイヤ layer
Noun 
令 りょう administrative and civil code
Noun, Archaism 
冷夏 れいか a cool summer
Common word, Noun 
零下 れいか below zero; sub-zero
Common word, Noun, No-adjective 
礼儀 れいぎ manners; courtesy; etiquette
Common word, Noun 
零時 れいじ 12 o'clock (midnight)
Common word, Noun 
霊位 れいい memorial tablet
Noun 
霊異 れいい miracle; wonder; wondrous thing
Noun 
冷雨 れいう chilly rain
Noun 
冷菓 れいか chilled sweets; ices; ice cream
Noun 
隷下 れいか subordinates; followers
Noun 
例規 れいき established rule; statute
Noun 
冷気 れいき cold; chill; cold weather; cold wave; cold air
Noun 

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