noun
umbrella organization; umbrella group
Refers to a coordinating body that encompasses multiple smaller groups, such as a federation or association.
そのNGOはいくつかの下部組織を統括する上部組織だ。
That NGO is an umbrella organization that oversees several subordinate groups.
下部組織 refers to a subordinate or lower-level organization under an umbrella group, while 上部組織 is the overarching body.
Compound of 上部 (じょうぶ, 'upper part') and 組織 (そしき, 'organization').