| Subject | English | Japanese |
| comp., MS | left mouse button | マウスの左ボタン (The button on your pointing device that you use most often for clicking and double-clicking) |
| comp. | n left-side mouse button | 左マウスボタン |
| comp., MS | mouse button | マウス ボタン (A movable piece on a device that is pressed to activate some function) |
| comp. | n mouse button | マウスボタン |
| comp., MS | primary mouse button | マウスの主ボタン (The button on your pointing device that you use most often for clicking and double-clicking) |
| comp., MS | right mouse button | マウスの右ボタン (The button on your pointing device that you use to display shortcut menus or other program-specific features) |