| Subject | English | Japanese |
| gen. | a group of users of the same language | 言語集団 |
| gen. | n branch of languages | 語派 (i.e. Italic languages as a subset of Indo-European languages) |
| gen. | Center for the Study of Language and Information | 言語情報研究センター |
| org.name. | Chinese Language Society of Japan | 日本中国語学会 |
| gen. | choice of language | 辞令 news1 nf20 (じれい) |
| comp., MS | control-of-flow language | フロー制御言語 (Transact-SQL keywords that control the flow of execution of SQL statements and statement blocks in triggers, stored procedures, and batches) |
| gen. | external significance of language | 言語の外的意義 |
| gen. | n family of languages | 語族 |
| geogr. | Futaba College of Foreign Languages | 双葉外語学校 |
| gen. | n group of languages | 語群 (i.e. the Romance languages, considered as a subset of the Italic languages) |
| gen. | n humble language in which the listener or a third party is the indirect object of an action | 謙譲語１ (or the recipient of an object, etc.) |
| gen. | n humble language in which the listener or a third party is the indirect object of an action | 謙譲語Ｉ (or the recipient of an object, etc.) |
| org.name. | International Association of Teachers of English as Foreign Language | 国際英語教育学会 |
| gen. | n Japanese word constructed of elements from foreign languages | 和製語 |
| ling. | n knowledge of language | 言語知識 |
| gen. | n language area of the cortex | 言語野 |
| gen. | n hon language conveying that the speaker is of greater social status than the listener | 尊大語 |
| gen. | Language of Bid | 入札書使用言語 |
| gen. | n language of one's country | 母国語 ichi1 |
| gen. | n language of flowers | 花詞 |
| gen. | n language of flowers | 花言葉 news2 nf32 |
| gen. | n language of the barbarians | 蛮語 |
| tech. | language of vision | 視覚言語 (しかくげんご) |
| gen. | n language used by the harlots of the Yoshiwara red light district during the Edo period | ありんすことば |
| gen. | n language used by the harlots of the Yoshiwara red light district during the Edo period | 吉原言葉 |
| gen. | languages of the world | 世界言語 |
| gen. | n more refined language through prefixing of "o-" or "-go" to words, and use of appropriate vocabulary | 美化語 |
| gen. | MT Method using automatic rewriting of source language | 原文自動書換型翻訳方式 |
| gen. | n number of syllabic sounds in a language | 音数 |
| gen. | n official languages of the UN | 国連公用語 (Arabic, Chinese, English, French, Russian and Spanish) |
| obs. | n peoples formerly of northern Japan with distinct language and culture | 戎 (i.e. the Ainu) |
| obs. | n peoples formerly of northern Japan with distinct language and culture | 夷 news2 nf41 (i.e. the Ainu) |
| gen. | n school dedicated to the study of the West and western languages | 洋学校 (late Edo and Meiji periods) |
| gen. | n secret language of court ladies | 女房言葉 (Muromachi period) |
| gen. | n secret language of court ladies | 女房詞 (Muromachi period) |
| gen. | n sense of language | 語感 news2 nf27 |
| org.name. | Society for the Study of Japanese Language | 国語学会 |
| gen. | n soul of language | 言魂 |
| gen. | n soul of language | こと霊 |
| gen. | n soul of language | 言霊 |
| gen. | n Test of English as a Foreign Language | ＴＯＥＦＬ |
| gen. | n the languages of Europe and America | 欧米諸言語 |
| obs. | translation of a foreign language into Japanese | 和解 ichi1 news1 nf03 (わかい) |
| gen. | n uncontrollable use of obscene language | 醜語症 |
| gen. | n uncontrollable use of obscene language | 汚言症 |
| gen. | n yoji unification of the written and spoken forms of a language | 言文一致 |