| Subject | English | Japanese |
| comp., MS | auto-reduce statement completion | 自動削減ステートメント候補 (" The IntelliSense feature that filters the list of values that IntelliSense displays to only the relevant ones based on what the user types. It also filters on title casing (e.g., if the user types "dl", both dl and asp:DataList are displayed).") |
| gen. | boil down sake, mirin, etc. to reduce the alcohol content | 煮切る |
| gen. | reduce illumination | 減光 (げんこう) |
| comp., MS | reduce operation | リデュース演算 (An F operation that performs a computation on successive collection elements and yields a single result of the same type as the elements) |
| gen. | reduce or cut back on | 手控える news2 nf33 (てびかえる) |
| gen. | reduce the price | 敗ける |
| gen. | reduce the price | 敗北る ik |
| gen. | reduce the price | 負ける ichi1 news2 nf29 |
| gen. | reduce to ashes | 焼き払う |
| gen. | reduce weight | 瘦せる oK |
| gen. | reduce weight | 瘠る io |
| gen. | reduce weight | 痩る io |
| gen. | reduce weight | 瘠せる |
| gen. | reduce weight | 痩せる ichi1 |
| gen. | voluntary reduce | パーソナルコンピュータのリデュース、リユースおよびリサイクルに関する自主行動計画 |