IPA: /ˈsɛm.iˌwiːk.li/
KK: /ˈsɛmɪˌwikli/
Happening two times in one week.
The magazine is published semiweekly, so I receive it every Tuesday and Friday.
Happening or occurring two times in one week.
The magazine is published semiweekly, so I receive it every Tuesday and Friday.
An event or publication that occurs twice a week.
The magazine is published semiweekly, coming out every Tuesday and Friday.
Semiweekly → It is formed from "semi-" (meaning half) and "weekly" (from Old English "wēce", meaning week). The word "semiweekly" means occurring half as often as weekly, or twice a week.
Think of 'half' ('semi-') of a 'week' — that's why semiweekly means something that happens twice a week.