| Subject | English | Japanese |
| geogr. | Japanese history a country that existed within Japan. Ruled by Queen Himiko in the third century AD | 邪馬台国 |
| gen. | n a third country | 第三国 news1 nf14 |
| gen. | n a third force | 第三勢力 news2 nf37 |
| gen. | n a third part | 三分の一 |
| law | a third party in good faith | 善意の第三者 (組合員の組合の業務を執行する権限に加えた制限は、善意の第三者に対抗することができない; Restrictions on the right of a partner to execute the Partnership's businesses may not be asserted against a third party in good faith; 有限責任事業組合契約に関する法律１３条３項) |
| gen. | n advance payment on behalf of a third party | 立替払い (with expectation that it will be reimbursed, たてかえばらい) |
| gen. | n advance payment on behalf of a third party | 立替え払い (with expectation that it will be reimbursed) |
| gen. | n advance payment on behalf of a third party | 立替払 (with expectation that it will be reimbursed) |
| baseb. | n area between the third baseman and shortstop | 三遊間 |
| gen. | n athlete competing in the middle-number match in a team competition, i.e. second in 3-on-3, third in 5-on-5 | 中堅 ichi1 news1 nf04 (kendo, judo, etc.) |
| law | beneficiary of third party services | 元方事業者 (労働安全衛生法) |
| gen. | n binding legal effectiveness as to third parties | 対世効 |
| law | exp n bona fide third party | 善意の第三者 |
| law | exp n bona fide third person | 善意の第三者 |
| gen. | n climate of the third month of the lunar calendar in Okinawa | うりずん (end of the dry season) |
| gen. | n dark sweet liquid produced after the third heating in a thermal sugar-refining process | 三温糖 |
| phys. | electrode of the third kind | 第三種の電極 (だいさんしゅ の でんきょく) |
| phys. | elliptic integral of the third kind | 第三種楕円積分 (だいさんしゅ・だえん・せきぶん) |
| gen. | n every third | 二つ置き |
| sumo. | extra third or fourth wrestler of certain rank | 張り出 io |
| sumo. | extra third or fourth wrestler of certain rank | 張出し (haridashi) |
| sumo. | extra third or fourth wrestler of certain rank | 張出 io |
| sumo. | extra third or fourth wrestler of certain rank | 張り出し news2 nf42 |
| gen. | n final third of a two-hour period | 下刻 |
| gen. | first, second and third | 松竹梅 news2 nf47 (class) |
| gen. | n first, second, third and fourth | 甲乙丙丁 |
| gen. | n first third of a two-hour period | 上刻 |
| gen. | n first-second-third | 上中下 (class) |
| gen. | n forced out on third | 三封 |
| gen. | n Heian-period ceremony where a newlywed groom and bride eat a rice-cake on the third night after the wedding ceremony | 三日の餠 oK |
| gen. | n Heian-period ceremony where a newlywed groom and bride eat a rice-cake on the third night after the wedding ceremony | 三日夜の餠 oK |
| gen. | n Heian-period ceremony where a newlywed groom and bride eat a rice-cake on the third night after the wedding ceremony | 三日夜の餅 |
| gen. | n Heian-period ceremony where a newlywed groom and bride eat a rice-cake on the third night after the wedding ceremony | 愛敬の餅 |
| gen. | n Heian-period ceremony where a newlywed groom and bride eat a rice-cake on the third night after the wedding ceremony | 三日の餅 |
| gen. | n kinsman of the third degree | 三親等 (of consanguinity) |
| gen. | n last day of the third lunar month | 三月尽 (marking the end of spring) |
| gen. | n last day of the third month of the lunar calendar | 弥生尽 |
| gen. | n-adv n-t last third of a month | 下旬 ichi1 news1 nf05 (げぢゅん) |
| mus. | n major third | 長３度 |
| mus. | n major third | 長三度 |
| gen. | middle third | 中央三分点 (ちゅうおうさんぶんてん) |
| gen. | n middle third of a two-hour period | 中刻 |
| mus. | n minor third | 短三度 |
| gen. | n national of a third country | 第三国人 |
| gen. | n national of a third country | 三国人 |
| sumo. | n newly recruited wrestlers in the third round of presentation after mae-zumo | 三番出世 |
| gen. | n vs adj-no no third party | 相対 news1 nf14 |
| gen. | non-third-singular rule | 非三人称単数規則 |
| rel., budd. | n offering ceremony held on the third day of the dog after the winter solstice | 臘 |
| gen. | n one third | 三分の一 |
| gen. | one-third atmosphere percentage | １/3気圧水分 |
| gen. | one third maximum wave | 1/3最大波 |
| gen. | one third maximum wave | １／３最大波 |
| gen. | one third octave band analyzer | 1/3オクターブバンド分析器 |
| gen. | n out on a third-base liner | 三直 |
| law | payment for a third party | 立替払 |
| law | payment on behalf of a third party | 立替払 |
| gen. | n uk postcards with the bottom third of the front side reserved for an advertisement, and sold at a lower cost than regular postcards | エコー葉書 |
| obs. | n purification ceremony held on the first day of the snake in the third month of the lunar calendar | 巳の日の祓 |
| sumo. | n referee officiating the third highest division | 幕下格 |
| sumo. | n referee officiating the third lowest sumo division | 三段目格 |
| law | requirement to duly assert against third parties | 対抗要件 (たいこうようけん) |
| baseb. | n scoring position, with runners on second and-or third base | 得点圏 |
| gen. | n second grade of the third rank of honor | 従三位 (honour) |
| pejor. | second or third person plural | 共 ichi1 (implies speaker is of higher status than those referred to) |
| gen. | n-adv n-t second third of a month | 中旬 ichi1 news1 nf05 (ちゅうぢゅん) |
| gen. | n senior grade of the third court rank | 正三位 |
| gen. | n steward in charge of the affairs of nobles of the third rank and higher | 家司 (from the middle of the Heian period) |
| phys. | surface of third order | 三次曲面 (さんぢ・きょくめん) |
| gen. | n the third | 第３ |
| gen. | n the third ... | 第三次 |
| gen. | n the third | 第三 |
| gen. | n the third day of the month | ３日 |
| gen. | n the third day of the month | 三日 ichi1 |
| gen. | n the third estate | 第三階級 |
| gen. | the third law of thermodynamics | 熱力学の第三法則 |
| gen. | n the Third Reich | 第三帝国 |
| gen. | n the Third World | 第三世界 |
| org.name. | The University of the Third Age | 第三世代大学 (U3A) |
| gen. | n third and final proof | 三校終了 |
| tech. | third angle projection | 第三角法 (だいさんかくほう) |
| gen. | third angle projection method | 第三角法 (だいさんかくほう) |
| gen. | third-angle system | 第三角法製図、 せいず (だいさんかくほう) |
| gen. | n Third Arab-Israeli War | 六日間戦争 (June 5-10, 1967) |
| gen. | n Third Arab-Israeli War | 第三次中東戦争 (June 5-10, 1967) |
| gen. | n Third Arab-Israeli War (June 5-10, 第３次中東戦争 | 第３次中東戦争 |
| phys. | third astronautical velocity | 等三宇宙速度 (だいさん・うちゅう・そくど) |
| gen. | n third base | 終止形 |
| gen. | n third base | サード・ベイス・ |
| baseb. | n third base | 三塁 news1 nf04 |
| gen. | n third base | サード・ベース |
| gen. | n third base | サードベイス |
| gen. | n third base | サードベース |
| baseb. | n third-base line | 三塁線 |
| baseb. | n third baseman | 三塁手 news1 nf21 |
| gen. | n third class | 三等 |
| gen. | n third class | ３等 news2 nf25 |
| gen. | n third-class | 丙種 |
| gen. | adj-no n third-class | 三流 ichi1 news2 nf26 |
| gen. | adj-na third class | 三級 |
| gen. | n item sent by third-class mail | 第三種郵便物 |
| gen. | n item sent by third-class mail | 第３種郵便物 |
| gen. | n third-class mail matter | 第三種郵便物 |
| gen. | n third-class mail matter | 第３種郵便物 |
| gen. | n third-class ticket | 赤切符 |
| gen. | exp third climate of spring | うお氷に上る (when the ice breaks and fish start appearing near the surface) |
| gen. | exp third climate of spring | 魚氷に上る (when the ice breaks and fish start appearing near the surface) |
| gen. | n third cockcrowing | 三番鳥 |
| gen. | n third cockcrowing | 三番鶏 |
| gen. | n third compartment of the stomach in ruminants | 葉胃 |
| gen. | n uk third cousin | 三従兄弟 |
| gen. | n third daughter | 三女 news1 nf19 |
| gen. | n vs adj-no third degree | 拷問 news1 nf17 |
| gen. | third degree | 角 ichi1 (of the Japanese & Chinese pentatonic scale, kaku) |
| gen. | n third degree burn | 第三度熱傷 |
| gen. | n third degree of kinship | ３等親 |
| gen. | n third degree of kinship | 三等親 |
| gen. | obsc sl third degree poverty | ビンベスト |
| obs. | third division of the night | 三鼓 (approx. 11 pm to 1 am) |
| obs. | n third division of the night | 丙夜 (approx. 11 pm to 1 am) |
| gen. | n Third Epistle of John | ヨハネの手紙三 (book of the Bible) |
| gen. | n third floor | 三階 |
| baseb. | n third, fourth, and fifth batters | クリーンナップトリオ |
| baseb. | n third, fourth, and fifth batters | クリーンアップトリオ gai1 |
| avunc. | third, fourth, fifth, etc. sons | 冷飯食い (during the Edo period when only the oldest male could inherit an estate) |
| avunc. | third, fourth, fifth, etc. sons | 冷や飯食い (during the Edo period when only the oldest male could inherit an estate) |
| gen. | third generation | 三代 news1 nf17 |
| gen. | third generation | 第三世代 |
| gen. | third generation | 三世 (immigrant, monarch, etc.) |
| phys. | third-generation computer | 第三世代計算機 (だいさん・せだい・けいさんき) |
| gen. | third generation model | 第三世代モデル |
| gen. | adj-na third grade | 三級 |
| gen. | n third guest of honour | 末客 (honor) |
| phys. | third harmonic | 第三調波 (だいさん・ちょうは) |
| phys. | third harmonic generation | 第三高調波発生 (だいさん・こうちょうは・はっせい) |
| sumo. | n third highest division | 幕下 news1 nf15 |
| obs. | n third highest-ranking officials in the Dazaifu | 監 |
| gen. | n third in a sequence denoted by the iroha system | ハ |
| gen. | n third in rank | 丙 news2 nf39 spec2 |
| gen. | third instar | 三齢 |
| gen. | n Third International | 第３インターナショナル |
| gen. | n Third International | 第三インターナショナル |
| gen. | third intracellular | 第三細胞内 |
| gen. | n third law of thermodynamics | 熱力学の第３法則 |
| phys. | third law of thermodynamics | 熱力学第三法則 (ねつりきがく・だいさん・ほうそく) |
| gen. | n third law of thermodynamics | 熱力学の第三法則 |
| gen. | third levee | 三番堤 |
| comp., MS | third-level domain | 第 3 レベル ドメイン (" A DNS domain located directly beneath another domain name (the parent domain) in the namespace tree. For example, "example.microsoft.com" would be a subdomain of the domain "microsoft.com".") |
| sumo. | n third lowest division | 三段目 news2 nf27 (さんだんめ) |
| gen. | n third lunar month | 早花咲月 |
| gen. | n third lunar month | 嘉月 |
| gen. | n third lunar month | 桜月 |
| gen. | n third lunar month | 花見月 |
| gen. | n obsc third lunar month | 夢見月 |
| gen. | third lunar month | 姑洗 |
| gen. | n third magnitude star | ３等星 |
| gen. | n third magnitude star | 三等星 |
| gen. | n third mate | 三等航海士 (さんとう・こうかいし) |
| obs. | third month of the lunar calendar | 暮春 |
| obs. | third month of the lunar calendar | 季春 |
| obs. | n third month of the lunar calendar | 弥生 news1 nf10 |
| obs. | third month of the lunar calendar | 晩春 news2 nf39 |
| gen. | n third note in the diatonic scale | ハ (used in key names, etc.) |
| gen. | n third of nine traditional astrological signs | 三碧 (corresponding to Jupiter and east) |
| gen. | n third of the sexagenary cycle | 丙寅 |
| gen. | n third officer | 三等航海士 (さんとう・こうかいし) |
| gen. | third order grid unit | 基準地域メッシュ |
| gen. | third order plotting instrument | 三級図化機 |
| comp. | n third order polynomial | 三次の多項式 |
| phys. | third order reaction | 三次反応 (さんぢ・はっんおう) |
| tech. | third order triangulation | 三等三角測量 (さんとうさんかくそくりょう) |
| abbr. | third party | 外野 news1 nf12 |
| gen. | n third party | サード・パーティー |
| gen. | n third party | サード・パーティ |
| comp., MS | third party | サード パーティ (A company that manufactures and sells accessories or peripherals for use with a major manufacturer's computer or peripheral, usually without any involvement from the major manufacturer) |
| gen. | n third party | サードパーティ |
| gen. | n third party | 第三政党 |
| gen. | n third party | サードパーティー |
| gen. | n third party | 第三者 news1 nf07 |
| law | third party acquirer | 第三取得者 (抵当不動産の第三取得者; A third party acquirer of mortgaged real properties; 民法379条) |
| law | third party action against execution | 第三者異議の訴え |
| law | exp n third-party action against execution | 第三者異議の訴え |
| fin. | n third-party allocation | 第三者割当株 (of new shares) |
| gen. | n third-party allocation of shares | 第三者割当増資 (だいさんしゃわりあてぞうし) |
| law | exp n third party beneficiary contract | 第三者のためにする契約 |
| gen. | third party claims | 第三者の補償要求 |
| econ. | third-party conformity assessment activity | 第三者適合性評価活動 |
| law | third party debtor | 第三債務者 (特に金銭債務を指す場合、倒産法の場合, だいさんさいむしゃ) |
| comp., MS | third-party driver | サード パーティ ドライバー (A driver created or provided by an entity outside Microsoft (distributed by a developer or an OEM)) |
| gen. | n third-party evaluation | 外部評価 |
| gen. | third party insurance | 第三者保険 (だいさんしゃ・ほけん) |
| comp., MS | third-party logistics | サード パーティー ロジスティクス (A party that provides logistics services to customers) |
| gen. | third party mortgagor | 物上保証人 |
| law | third party notice | 訴訟告知 |
| law | third party obligor | 第三債務者 (債務一般の場合, だいさんさいむしゃ) |
| gen. | n third-party panel | 第三者委員会 |
| gen. | third party risk | 第三者のリスク |
| comp., MS | third-party update | サードパーティの更新プログラム (An update published by a company other than Microsoft) |
| gen. | third person | 傍 (そば) |
| ling. | n third person | 他称 |
| ling. | n third person | 第三人称 |
| ling. | n third person | 三人称 |
| gen. | third person | 端 (はした) |
| gen. | n third person | 第三者 news1 nf07 |
| gen. | third person | 側 ichi1 news1 nf03 (がわ) |
| law | third person collateral provider | 物上保証人 (抵当権及び質権以外の場合) |
| law | third person mortgagor | 物上保証人 (抵当権の場合) |
| law | third person pledgor | 物上保証人 (質権の場合) |
| ling. | n third person pronoun | 三人称代名詞 |
| ling. | n third person singular | 三人称単数 |
| abbr. | n third person singular present | 三単現 |
| ling. | n third person singular present | 三人称単数現在 |
| tech. | third point loading | 三等分点載荷 (さんとうぶんてんさいか) |
| gen. | n third prize | ３等賞 |
| gen. | n third prize | 三等賞 |
| gen. | n third proof | 三校 news2 nf25 |
| el.tract. | third rail | 導電レール |
| tech. | third rail | 第三レール (daisan-rēru) |
| el.tract. | third rail collector | シュー装置 |
| gen. | n adj-no third rank | 三位 (in the Japanese court system) |
| gen. | n third rank in the game of go | 囲碁三級 |
| gen. | adj-no n third-rate | 三流 ichi1 news2 nf26 |
| gen. | n yoji third-rate actor | 三文役者 |
| gen. | third sector | 第３セクター |
| gen. | n third sector | 第三セクター |
| gen. | n third sign of Chinese zodiac | 寅 news1 nf14 (The Tiger, 3am-5am, east-northeast, January) |
| gen. | n third sign of the Chinese calendar | 丙 news2 nf39 spec2 |
| gen. | n third son | 三郎 ({uk} Occella iburia ***b (species of poacher)) |
| gen. | third son | 三男 news1 nf12 |
| gen. | third stage | 第三期 |
| anat. | n adj-no third stage of kidney development | 後腎 (こうぢん) |
| anat. | n adj-no third stage of kidney development | 後じん |
| gen. | n third string | 三の糸 (of a shamisen, etc.) |
| gen. | n third-term election | 三選 news1 nf15 |
| gen. | exp third time lucky | 三度目の正直 |
| gen. | exp third time's the charm | 三度目の正直 |
| gen. | n third toe | 中指 ichi1 news2 nf33 |
| gen. | n third train to depart | 次次発 (from now) |
| gen. | n third train to depart | 次々発 (from now) |
| gen. | n adj-no third trimester | 後期 ichi1 news1 nf06 (kōki) |
| comp. | n third vender | サード・ベンダ |
| comp. | n third vender | サードベンダ |
| anat. | n third ventricle | 第三脳室 |
| anat. | n third ventricle | 第３脳室 |
| el.tract. | third-voltage motor | 1/3 電圧電動機 |
| gen. | third volume | 下 (of three) |
| gen. | n third watch of the night | 三更 (approx. 11 pm to 1 am) |
| gen. | n third wheel | お邪魔虫 |
| gen. | n third wheel | 御邪魔虫 |
| gen. | n third wheel | 余計者 (よけいもの) |
| gen. | n sens third world country | 低開発国 (ていかいはつこく) |
| gen. | n sens third world country | 後進国 news2 nf37 (こうしんこく) |
| gen. | n Third World War | 第３次世界大戦 |
| gen. | n Third World War | 第三次世界大戦 |
| gen. | n third-year high-school student | 高３ |
| gen. | n third-year high-school student | 高三 |
| gen. | n third year of high school | 高３ |
| gen. | n third year of high school | 高三 |
| gen. | n third year college student | ３回生 |
| gen. | n third-year student | 三年生 |
| gen. | n third year college student | 三回生 |
| gen. | n thirty-third of the sexagenary cycle | 丙申 |
| gen. | n three-part joke, where the first two parts are similar and mundane, while the third is the punchline | 三段オチ (e.g. How do you get to my place? Go down to the corner, turn left, and get lost.) |
| gen. | n three-part joke, where the first two parts are similar and mundane, while the third is the punchline | 三段落ち (e.g. How do you get to my place? Go down to the corner, turn left, and get lost.) |
| gen. | n twenty-third day of the month | ２３日 |
| gen. | n twenty-third day of the month | 二十三日 |
| gen. | n twenty-third of the sexagenary cycle | 丙戌 |
| gen. | n two thirds | 三分の二 |
| gen. | exp while two dogs are fighting for a bone, a third runs away with it | 鷸蚌の争い |
| gen. | n winning hand that contains two pungs or kongs of dragons and a pair of the third dragon | 小三元 |
| sumo. | n wrestler of the third highest rank | 関脇 news1 nf12 |
| sumo. | n wrestlers of the third highest division | 幕下 news1 nf15 |