Denshi Jisho — Online Japanese dictionary

口 く 1:
2: (Buddhist term) mouth; speech; () counter for people or implements
Noun 
口 くち 1: mouth;
2: opening; hole; gap; orifice;
3: mouth (of a bottle); spout; nozzle; mouthpiece;
4: gate; door; entrance; exit;
5: speaking; speech; talk (i.e. gossip);
6: taste; palate;
7: mouth (to feed);
8: opening (i.e. vacancy); available position;
9: invitation; summons;
10: kind; sort; type;
11: opening (i.e. beginning);
12: () counter for mouthfuls, shares (of money), and swords
Common word, Noun 
侯 こう marquis; lord; daimyo
Common word, Noun, Noun suffix 
甲 こう 1: carapace; shell;
2: 1st in rank; grade A;
3: instep; back of hand;
4: the A party (e.g. in a contract); the first party
Common word, Noun 
稿 こう manuscript; version; draft
Common word, Noun 
亢 こう Chinese "Neck" constellation (one of the 28 mansions)
Noun 
候 こう season; weather
Noun 
公 こう 1: public matter; governmental matter;
2: prince; duke;
3: () lord; sir;
4: (Noun suffix) familiar or derogatory suffix (after a name, etc.)
Noun, Suffix 
功 こう 1: merit; success; meritorious deed;
2: achievement; accumulated experience
Noun 
劫 こう 1: (Buddhist term) kalpa (eon, aeon);
2: (Usually written using kana alone) ko (in Go, the arrangement that allows for the eternal capture and recapture of the same stones)
Noun 
効 こう efficacy; benefit; efficiency; effect; result; success
Noun 
匣 こう 1: box;
2: car (of a train, etc.);
3: shamisen case; shamisen;
4: (Archaism) man who carries a geisha's shamisen;
5: (Archaism) receptacle for human waste; feces (faeces)
Noun 
口 こう counter for people or implements
Suffix, Counter 
喉 こう 1:
2: (Archaism) (Female term or language) fish; () counter for fish
Noun 
坑 こう pit (esp. of a mine)
Noun, Noun suffix 
好 こう good
Prefix 
孝 こう filial piety
Noun 
寇 こう invasion; invader
Noun, Obscure term 
工 こう (factory) worker
Noun suffix 
幸 こう good luck; fortune; happiness
Noun 
庚 こう 7th in rank; seventh sign of the Chinese calendar
Noun 
抗 こう anti-
Prefix 
更 こう one-fifth of the night (approx. 2 hours)
Noun 
校 こう 1: school;
2: () proof (of a book, document, etc.); counter for proofs
Suffix 
江 こう 1: (Archaism) large river (esp. the Yangtze);
2: Lake Biwa
Noun 
港 こう harbour (in location names)
Suffix 

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