| English | eng-000 |
| half-period | |
| беларуская | bel-000 | паўпэрыяд |
| 普通话 | cmn-000 | 半周期 |
| Deutsch | deu-000 | Alternanz |
| Deutsch | deu-000 | halbe Schwingungsdauer |
| English | eng-000 | half cycle |
| English | eng-000 | half time |
| English | eng-000 | half-term |
| English | eng-000 | one-half period |
| English | eng-000 | semi-period |
| Esperanto | epo-000 | alternanco |
| français | fra-000 | alternance |
| magyar | hun-000 | félperiódus |
| 日本語 | jpn-000 | 半季 |
| 日本語 | jpn-000 | 半期 |
| にほんご | jpn-002 | はんき |
| русский | rus-000 | период полувыведения |
| русский | rus-000 | период полураспада |
| русский | rus-000 | полупериод |
| español | spa-000 | semiperiodo |
| español | spa-000 | semiperíodo |