Denshi Jisho — Online Japanese dictionary

かつ thirst
Noun 
かわき thirst
Common word, Noun 
乾く かわく to get dry
Common word, Godan verb with ku ending, Intransitive verb 
かわく to be thirsty
Common word, Godan verb with ku ending, Intransitive verb 
かっし dying of thirst
Noun, Suru verb, Archaism 
かっす to be thirsty; to be dry
Godan verb with su ending, Intransitive verb 
かっすい water shortage
Common word, Noun 
かつぼう craving; longing; thirsting
Common word, Noun, Suru verb 
かつあい thirst; craving; desire
Noun 
かつごう adoration; reverence; esteem
Noun, Suru verb 
する かっする to be thirsty; to be dry
Suru verb - special class, Intransitive verb 
ごう かつごう adoration; reverence; esteem
Noun, Suru verb 
かつぎょう adoration; reverence; esteem
Noun, Suru verb 
水期 かっすいき dry season
Noun 
川下り かわくだり going downstream (in a boat)
Noun 
望者 かつぼうしゃ desiring person; luster
Noun 
を癒やす かつをいやす to quench one's thirst
Expression, Godan verb with su ending 
しても盗泉の水を飲まず かっしてもとうせんのみずをのまず Even if thirsty not to drink from "Robber's Spring"; A proverb meaning not to lower oneself to unjust acts no matter how desperate; (English equivalent) The eagle does not hunt flies
Expression 

You can also

Look up kanji details for 渇 かわく.

Try a Yahoo Jisho search for 渇 かわく .
Try a Goo Jisho search for 渇 かわく .
Try a Google search for 渇 かわく .