| Subject | English | Japanese |
| comp., MS | functional currency unit | 機能通貨単位 (A currency unit of a country/region in which a primary legal entity locates its business activities and in which it generates most of its revenue and expenses) |
| comp. | n functional unit | 機能単位 |
| auto.ctrl. | functional unit | 機能装置 (きんおう・そうち) |
| phys. | functional unit | 機能ユニット (kinō-yunitto) |
| comp. | n functional unit | 演算器 (e.g. in analog computing) |
| comp. | n systems management functional unit | システム管理機能単位 |