| English | eng-000 |
| mid-frequencymean frequency | |
| 普通话 | cmn-000 | 中频 |
| English | eng-000 | intermediate frequency |
| English | eng-000 | median frequency |
| English | eng-000 | medium frequency |
| English | eng-000 | mid-range frequency |
| English | eng-000 | midband |
| English | eng-000 | midfrequency |