| Main Entry: | biannual |
| Part of Speech: | adjective |
| Definition: | occurring twice a year |
Synonyms: |
half-yearly, semiannual |
| Notes: | biannual is happening twice per year while biennial is happening every second year |
| Main Entry: | semiannual |
| Part of Speech: | adjective |
| Definition: | twice a year |
Synonyms: |
biannual, every six months, half-yearly, semiyearly |