IPA: //ˌmʌltiˈmɛmbər//
KK: /mʌltiˈmɛmbər/
Describing something that consists of or involves multiple members or participants.
The committee was a multimember group that represented various interests.
Multimember → It is formed from "multi-" (meaning many) and "member" (from Latin "membrum", meaning limb or part). The word "multimember" refers to something that consists of many parts or members.
Think of 'many' ('multi-') parts or 'members' coming together — that's what multimember means.
No commonly confused words.