Denshi Jisho — Online Japanese dictionary

つ 1: indicates two contrasting actions;
2: (Particle) (Archaism) indicates possessive (often found in place names and compound words)
Conjunction 
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 
子 し 1: child (esp. a boy);
2: viscount;
3:
4: (Honorific or respectful language) master (founder of a school of thought, esp. Confucius);
5: philosophy (branch of Chinese literature); non-Confucian Hundred Schools of Thought writings;
6: (Archaism) you (of one's equals); (Noun suffix) -er (i.e. a man who spends all his time doing...)
Noun 
子 す honorific (or familiar) suffix used after a name
Suffix, Archaism, Honorific or respectful language 
個 つ counter for the hito-futa-mi counting system (forming hitotsu, futatsu, mitsu, and misoji, yasoji, etc.)
Counter, Usually written using kana alone 
唾 つ saliva; spit; sputum
Out-dated or obsolete kana, Noun, Suru verb 
津 つ 1: harbour; harbor; port;
2: ferry
Suffix 
箇 つ counter for the hito-futa-mi counting system (forming hitotsu, futatsu, mitsu, and misoji, yasoji, etc.)
Counter, Usually written using kana alone 
子 ね first sign of Chinese zodiac (The Rat, 11pm-1am, north, November)
Noun 
子 み 1: fruit; nut;
2: seed;
3: (in broth) pieces of meat, vegetable, etc.;
4: content; substance
Noun 
つい 1: just (now);
2: quite (near);
3: unintentionally; unconsciously; by mistake; against one's better judgement (judgment)
Common word, Adverb 
つつ 1: while;
2: even though; despite
Common word, Particle 
ツナ tuna (usu. refers to canned tuna)
Common word, Noun 
ツキ Japanese zelkova (species of elm-like tree, Zelkowa serrata)
Noun, Usually written using kana alone 
ツキ 1: furnished with; including;
2: attached to;
3: impression; appearance;
4: (Noun)
5: (Usually written using kana alone) luck;
6: sociality; () under; assistant (e.g. to a manager);
7: soup base
Noun, Noun suffix 
ツゲ Japanese box tree (Buxus microphylla var. japonica); Japanese boxwood
Noun, Usually written using kana alone 
つと 1: quickly;
2: calmly;
3: intently
Adverb 
ツブ 1: (Usually written using kana alone) whelk (esp. Neptunea and Buccinum spp.);
2: small spiral-shelled snail (esp. a pond snail)
Noun 
ツミ Japanese sparrowhawk (Accipiter gularis)
Noun, Usually written using kana alone 
ツメ to close up (editing mark)
Noun, Abbreviation 
ツル crane (any bird of the family Gruidae, esp. the red-crowned crane, Grus japonensis)
Noun 
ツー two
Noun 
対 つい 1: pair; couple; set;
2: antithesis;
3: (Counter) counter for items that come in pairs;
4: counter for sets (of clothes, small furniture, utensils, etc.)
Common word, Noun 
通 つう 1: connoisseur; authority;
2: (Counter) counter for letters, notes, documents, etc.
Common word, Na-adjective, Noun 
杖 つえ cane; walking stick; staff
Common word, Noun 
塚 つか mound
Common word, Noun 

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