IPA: /ˌsɛm.iˈjɪr.li/
KK: /ˌsɛmɪˈjɪrli/
Happening two times in a year or every six months.
The company holds semiyearly meetings to discuss progress and goals.
Happening or occurring twice a year, or every six months.
The company holds a semiyearly meeting to discuss progress and goals.
An event or publication that occurs twice a year.
The company releases its semiyearly report in June and December.
Semiyearly → It is formed from "semi-" (meaning half) and "yearly" (from Old English "geāre", meaning year). The word "semiyearly" means occurring half as often as yearly, or twice a year.
Think of 'semi-' meaning half and 'yearly' meaning every year — so semiyearly refers to something that happens twice a year.
No commonly confused words.