Denshi Jisho — Online Japanese dictionary

すい lightly; nimbly
Adverb taking the 'to' particle 
みず 1: water (esp. cool, fresh water, e.g. drinking water);
2: fluid (esp. in an animal tissue); liquid;
3: flood; floodwaters;
4: water offered to sumo wrestlers just prior to a bout;
5: break granted to sumo wrestlers engaged in a prolonged bout
Common word, Noun 
すい 1: (Abbreviation) Wednesday;
2: shaved ice (served with flavored syrup);
3: water (fifth of the five elements)
Noun 
すい 1: understanding; sympathetic;
2: the best
Na-adjective, Noun 
すい cone; pyramid
Noun 
すい counter for spindles
Suffix, Counter 
かこ sailor; seaman
Noun 
かこ sailor; seaman
Noun 
酸い すい sour; acid
Adjective 
せり Java water dropwort (Oenanthe javanica); Japanese parsley
Noun, Usually written using kana alone 
なぎ Monochoria korsakowii (species of flowering plant)
Noun, Archaism 
みお 1: waterway; channel;
2: wake (of a ship)
Noun 
みお 1: waterway; channel;
2: wake (of a ship)
Noun 
みる Codium fragile (species of seaweed)
Noun, Usually written using kana alone 
スイ watermelon
Common word, Noun 
スイ 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 1:
2: (Usually written using kana alone) Switzerland (fre: Suisse); (Noun or verb acting prenominally) Swiss
Noun 
すい lightly; nimbly
Adverb taking the 'to' particle 
推移 すい transition; change
Common word, Noun, Suru verb 
すい water level
Common word, Noun 
西瓜 すい watermelon
Common word, Noun 
すい drowning
Common word, Noun, Suru verb 
炊事 すい cooking; culinary arts
Common word, Noun, Suru verb 
すい hydrogen
Common word, Noun 
推理 すい reasoning; inference; mystery or detective genre (movie, novel, etc.)
Common word, Noun, Suru verb, No-adjective 
すい water supply; irrigation; water transportation
Common word, Noun 

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