umbrella

adj : covering or applying simultaneously to a number of similar

items or elements or groups; "an umbrella

organization"; "umbrella insurance coverage"

n 1: a lightweight handheld collapsible shelter

2: a formation of military planes maintained over ground

operations or targets; "an air umbrella over England"

3: having the function of uniting a group of similar things;

"the Democratic Party is an umbrella for many liberal

groups"; "under the umbrella of capitalism"