- mutanpokashitsuke (無担保貸付): an unsecured loan
- shiritsutantei (私立探偵): a private detective, a private eye
- shiritsutanteisha (私立探偵社): a private detective agency
- sōgyōtanshuku (操業短縮): reduction of operation
- tanpen'eiga (短編映画): a short film, [US Slang] shorties
- tanpenshōsetsu (短編小説): a short story
- tanpenshū (短篇集): a collection of short stories
- tanpo (担保): a security, a mortgage
- tanpo ni ireru (担保に入れる): to give [a thing] as a security
- tanpo ni shite (担保にして): [to borrow money] on the security of
- tanpobukken (担保物件): collateral
- tanpopo (蒲公英): a dandelion
- tanpotsukikashitsuke (担保付貸付): a secured loan
- tanpura (短プラ): a short-term prime (interest) rate
- tanpyō (短評): a brief comment
- tanraku (短絡): [Elec.] a short circuit
- tanrakuteki (短絡的): simplistic
- tanrakutekishikō (短絡的思考): simplism
- tanreina (端麗な): handsome, graceful, beautiful
- tanren suru (鍛錬する): to temper, to forge; [心身を] to train, to discipline, to drill
- tanri de (単利で): (at) simple interest
- tanryo (短慮): indiscretion, rashness; quick temper
- tansa (探査): an inquiry, an investigation
- tansa suru (探査する): to inquire, to investigate, to probe
- tansaibō (単細胞): [Biol.] a single cell; [Slang] a simpleminded person
- tansaibōdōbutsu (単細胞動物): a unicellular animal
- tansaku (単作): a single crop
- tansaku suru (探索する): to search for, to look for, to investigate, to inquire
- tansan (炭酸): carbonic acid
- tansan kari (炭酸カリ): potassium carbonate
- tansan karushiumu (炭酸カルシウム): calcium carbonate
- tansan sōda (炭酸ソーダ): sodium carbonate
- tansangasu (炭酸ガス): carbonic acid gas
- tansaninryō (炭酸飲料): a carbonated drink, [Infml.] (soda) pop
- tansansui (炭酸水): soda water
- tansei o kometa (丹精をこめた): elaborate
- tansei o komete (丹精をこめて): elaborately
- tansei o morasu (嘆声を漏らす): to heave a (deep) sigh
- tansei shite (丹精して): with great care
- tansei suru (丹精する): to take great pains, to make every effort, to give one's whole mind
- tanseika (単性花): an unisexual flower
- tanseina (端正な): right, upright, decent, handsome
- tanseiseishoku (単性生殖): monogenesis
- tanseki (胆石): a gallstone, a bilestone
- tansekishō (胆石症): cholelithiasis
- tansen (単線): a single track
- tansha (単車): a motorcycle
- tanshi (端子): [電気の] a terminal
- tanshin (短針): the short hand, the hour hand
- tanshin (短信): a brief note/letter
- tanshin de (単身で): alone, by oneself
- tanshinfunin (単身赴任): commuter marriage
- tanshinfuninsha (単身赴任者): a business bachelor
- tanshiyōshokubutsu (単子葉植物): a monocotyledonous plant
- tansho (短所): a weak point, a weakness, a defect, a shortcoming
- tansho (端緒): the beginning, the start; a clue
- tanshoku (淡色): a light colour
- tanshoku no (単色の): monochromatic
- tanshokuga (単色画): a monochrome
- tanshuku suru (短縮する): to shorten, to reduce, to cut (down)
- tanshōtō (探照灯): a searchlight
- tanso (炭素): carbon
- tansobō (炭素棒): a carbon rod/point
- tansoku suru (嘆息する): to sigh, to heave a sigh; to deplore, to grieve
- tansu (箪笥): a chest of drawers, a bureau
- tansui (淡水): fresh water
- tansuigyo (淡水魚): a fresh-water fish
- tansuikabutsu (炭水化物): a carbohydrate
- tansuiko (淡水湖): a fresh-water lake
- tansuiro (短水路): a 25-meter course
- tansuyokin (箪笥預金): hoarded money
- tansō (炭層): a coal seam/bed
- tansū (単数): [Gram.] the singular (number)
- tansū no (単数の): singular
- tantan taru (坦々たる): level, even, smooth, flat; uneventful, peaceful, monotonous
- tantan taru (淡々たる): cool; disinterested; indifferent
- tantei (探偵): a detective
- tantei o tsukeru (探偵をつける): to set a detective
- tantei suru (探偵する): to inquire into secretively, to investigate secretly, to spy
- tanteishōsetsu (探偵小説): a detective story
- tantekina (端的な): direct, frank
- tantekini (端的に): directly, frankly
- tantekini iu to (端的に言うと): to be frank with you, frankly speaking
- tantetsu (鍛鉄): wrought iron
- tantsubo (痰壷): a spittoon, a cuspidor
- tantō (短刀): a dagger, a knife
- tantō suru (担当する): to take charge of, to be in charge of
- tantōchokunyūna (単刀直入な): point-blank, direct
- tantōsha (担当者): a person in charge of
- tanuki (狸): a raccoon dog; a cunning fellow, an old fox
- tanukineiri suru (狸寝入りする): to pretend to be asleep, [Infml.] to play possum
- tanukioyaji (狸親爺): an old fox
- toranu tanuki no kawazan'yō o suru (捕らぬ狸の皮算用をする): to count the chickens before they are hatched
- yōfukudansu (洋服箪笥): a wardrobe