Denshi Jisho — Online Japanese dictionary

刻 こく 1: archaic period of time (usu. a period of approx. two hours corresponding to one of the signs of the Chinese zodiac);
2: carving; engraving; cutting; mincing;
3: strictness; cruelty
Common word, Noun 
石 こく 1: measure of volume (approx. 180.39 liters, 6.37 cub. ft.);
2: measure of a Japanese-style boat's loading capacity (approx. 278.26 liters)
Common word, Noun 
酷 こく 1: severe; harsh; stringent; rigorous; strict; unfair;
2: (Usually written using kana alone) body (esp. of food, wine, etc.); weight; substance
Common word, Na-adjective, Noun 
剋 こく 1: archaic period of time (usu. a period of approx. two hours corresponding to one of the signs of the Chinese zodiac);
2: victory;
3: strictness; cruelty
Noun 
斛 こく 1: measure of volume (approx. 180.39 liters, 6.37 cub. ft.);
2: measure of a Japanese-style boat's loading capacity (approx. 278.26 liters)
Noun 
古句 こく ancient expression; old poem
Noun 
扱く こく to thresh; to strip
Godan verb with ku ending, Transitive verb 
放く こく 1: (Usually written using kana alone) to let loose (e.g. a fart);
2: (Usually written using kana alone) (Vulgar expression or word) to utter (e.g. a lie)
Godan verb with ku ending, Transitive verb 
コクス coke (ger: Koks)
Noun 
こくり 1: nodding; dozing off;
2: () suddenly
Noun, Suru verb, Adverb taking the 'to' particle 
コクる to confess (one's love); to propose (marriage); to ask out (on a date)
Godan verb with ru ending, Transitive verb, Slang 
コクワ hardy kiwi (Actinidia arguta); tara vine; bower vine
Noun, Usually written using kana alone 
こくん 1: (Onomatopoeic or mimetic word) nod deeply;
2: glugging; drinking deeply
Adverb taking the 'to' particle 
コクン 1: (Onomatopoeic or mimetic word) nod deeply;
2: glugging; drinking deeply
Adverb taking the 'to' particle 
黒衣 こくい black clothes
Common word, Noun 
虚空 こくう empty space; empty sky
Common word, Noun 
国技 こくぎ national sport (e.g. sumo)
Common word, Noun 
国語 こくご 1: national language;
2: Japanese language (often as a school subject);
3: native Japanese words (as opposed to loanwords)
Common word, Noun 
国士 こくし distinguished citizen; patriot
Common word, Noun 
酷使 こくし exploitation; overuse; abuse
Common word, Noun, Suru verb 
告示 こくじ notice; bulletin
Common word, Noun, Suru verb 
酷似 こくじ resemblance; resemble
Common word, Noun, Suru verb, No-adjective 
国是 こくぜ national policy
Common word, Noun 
告訴 こくそ accusation; complaint; charge; legal action
Common word, Noun, Suru verb, No-adjective 
告知 こくち notice; announcement
Common word, Noun, Suru verb 
国土 こくど country; territory; domain; realm
Common word, Noun 

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