Denshi Jisho — Online Japanese dictionary

こ 1: (Abbreviation) doing; in such a state;
2: doing together; contest; match;
3: (Familiar language) familiarizing suffix (sometimes meaning "small")
Suffix 
個 こ 1: counter for articles;
2: counter for military units;
3: individual
Common word, Counter 
子 こ 1: child;
2: young (animal);
3: young woman; young geisha;
4: offshoot;
5: interest;
6:
7: (Abbreviation) new shares;
8: (Archaism) bird egg; (Noun suffix) (after a noun or -masu stem) -er (often of young women)
Common word, Noun, Noun suffix 
児 こ 1: child;
2: young (animal);
3: young woman; young geisha;
4: offshoot;
5: interest;
6:
7: (Abbreviation) new shares;
8: (Archaism) bird egg; (Noun suffix) (after a noun or -masu stem) -er (often of young women)
Noun, Noun suffix 
壷 こ hu (ancient Chinese vessel shaped like a vase, usually used to store alcohol)
Noun 
壺 こ hu (ancient Chinese vessel shaped like a vase, usually used to store alcohol)
Noun 
小 こ 1: small; little; slight;
2: slightly less than; just about;
3: somewhat; somehow;
4: minor (sometimes derogatory); petty
Prefix 
弧 こ arc
Noun 
戸 こ counter for houses
Counter 
故 こ the late (deceased)
Prefix 
湖 こ lake (in place names)
Suffix 
濃 こ dark; thick
Prefix 
箇 こ 1: counter for articles;
2: counter for military units;
3: individual
Counter 
粉 こ flour; meal; powder
Noun 
胡 こ barbarian tribes surrounding ancient China
Noun, Archaism 
海鼠 こ sea cucumber (Holothuroidea spp.)
Out-dated or obsolete kana, Noun, Usually written using kana alone 
コア core
Common word, Noun 
こそ for sure (emphasize preceding word)
Common word, Particle 
コネ connection; pull
Common word, Noun, Abbreviation 
コマ coma
Common word, Noun 
コム computer output microfilm system; COM
Common word, Noun, Computer terminology 
コル col
Common word, Noun, fre: 
コイ Khoi (people); Khoikhoi; Khoi-khoin
Noun 
コシ 1: back; lower back; waist; hips; lumbar region;
2: body (of hair, noodle, paper, etc.); resilience; spring
Noun 
コソ kousso (African flowering plant, Hagenia abyssinica); kosso; cusso; koso; brayera
Noun, Usually written using kana alone 
コチ flathead (esp. the bartailed flathead, Platycephalus indicus)
Noun, Usually written using kana alone 

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