| Subject | English | Japanese |
| comp., MS | binary digit | 2 進数 (The smallest unit of information handled by a computer. One bit expresses a 1 or a 0 in a binary numeral, or a true or false logical condition. A group of 8 bits makes up a byte, which can represent many types of information, such as a letter of the alphabet, a decimal digit, or other character) |
| radio | binary digit | ビット (bitto) |
| phys. | binary digit | 2進数字 (にしんすうぢ) |
| telegr. | binary digit | 2進数 (にしんす) |
| el. | binary digit | 二進数字 １ |
| comp. | n binary digit | ２進数字 |
| pwr.lines. | binary digit rate | ビットレート |
| comp. | n binary digit string | ビット列 |
| telegr. | erroneous binary digit | 誤り2進桁 |