umbrella has definitions from the field of military
1
[ noun ] a lightweight handheld collapsible canopy

Used in print

(Norman Kent, "The Watercolor Art of Roy M. Mason"...)

I work on a watercolor easel in the field , and frequently resort to a large garden umbrella to protect my eyes from undue strain .

(Breni James, Nights of the Kill....)

The lieutenant 's sparse brown hair was heavily pomaded , and as Killpath raked the comb through it , it stuck together in thatches so that it looked_like umbrella ribs clinging to his pink skull .

Related terms

canopy gamp handle rib gore

2
[ noun ] (military) a formation of military planes maintained over ground operations or targets

Examples

"an air umbrella over England"

Related terms

defense military

3
[ adjective ] covering or applying simultaneously to a number of similar items or elements or groups

Examples

"an umbrella organization" "umbrella insurance coverage"

Related terms

comprehensive

4
[ noun ] having the function of uniting a group of similar things

Examples

"the Democratic Party is an umbrella for many liberal groups" "under the umbrella of capitalism"

Related terms

union

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