Denshi Jisho — Online Japanese dictionary

すい lightly; nimbly
Adverb taking the 'to' particle 
水 すい 1: (Abbreviation) Wednesday;
2: shaved ice (served with flavored syrup);
3: water (fifth of the five elements)
Noun 
粋 すい 1: understanding; sympathetic;
2: the best
Na-adjective, Noun 
錐 すい cone; pyramid
Noun 
錘 すい counter for spindles
Suffix, Counter 
吹く ふく 1: to blow (wind, etc.); to play a wind instrument;
2: to emit; to spout;
3: to whistle
Common word, Godan verb with ku ending 
酸い すい sour; acid
Adjective 
スイカ watermelon
Common word, Noun 
スイカ Suica (rechargeable prepaid IC card that can be used as a train pass in the greater Tokyo, Osaka and Sendai regions and also as electric money in some stores)
Noun 
スイス 1:
2: (Usually written using kana alone) Switzerland (fre: Suisse); (Noun or verb acting prenominally) Swiss
Noun 
すいっ lightly; nimbly
Adverb taking the 'to' particle 
推移 すいい transition; change
Common word, Noun, Suru verb 
水位 すいい water level
Common word, Noun 
西瓜 すいか watermelon
Common word, Noun 
水死 すいし drowning
Common word, Noun, Suru verb 
炊事 すいじ cooking; culinary arts
Common word, Noun, Suru verb 
水素 すいそ hydrogen
Common word, Noun 
推理 すいり reasoning; inference; mystery or detective genre (movie, novel, etc.)
Common word, Noun, Suru verb, No-adjective 
水利 すいり water supply; irrigation; water transportation
Common word, Noun 
水路 すいろ 1: waterway; canal; channel;
2: aqueduct; conduit
Common word, Noun 
吹雪 ふぶき snow storm; blizzard
Common word, Noun 
垂下 すいか being pendent; hanging down
Noun, Suru verb, No-adjective 
水化 すいか hydration
Noun, Suru verb 
水火 すいか fire and water
Noun 
水瓜 すいか watermelon
Noun 
水禍 すいか flood disaster; drowning
Noun 

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