The disbandment of the community organization due to lack of funding left many members feeling lost.

disbandment 是名词，由动词 disband（解散）加上名词后缀 -ment 构成。dis- 是表示"否定、相反"的前缀，band 原指"带子、乐队"，引申为"团体、组织"。disbandment 指"解散、解体"的行为或状态。