| Subject | English | Japanese |
| comp., MS | cache invalidation | キャッシュの無効化 (The process of flagging an object in the cache so that it will no longer be used by any cache clients. This occurs when an object remains in cache longer than the cache time-out value (when it expires)) |
| law | trial for invalidation | 無効の審判 |
| law | trial for patent invalidation | 特許無効審判 |