Definition of Umbrella

Noun: umbrella ,Ãºm'bre-lu

A lightweight handheld collapsible canopy used to keep off rain
(military) a formation of military planes maintained over ground operations or targets
"an air umbrella over England"
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"
The main body of a jellyfish, excluding the tentacles

Adjective: umbrella ,Ãºm'bre-lu

Covering or applying simultaneously to a number of similar items or elements or groups
"an umbrella organization"; "umbrella insurance coverage"