n.
Pronunciation: ˌ ə m- ' bre-l ə , esp Southern ' ə m- ˌ
Function: noun
Etymology: Italian ombrella, modification of Latin umbella, diminutive of umbra
Date: 1611
1 : a collapsible shade for protection against weather consisting of fabric stretched over hinged ribs radiating from a central pole especially : a small one for carrying in the hand
2 : the bell-shaped or saucer-shaped largely gelatinous structure that forms the chief part of the body of most jellyfishes
3 : something which provides protection: as a : defensive air cover (as over a battlefront) b : a heavy barrage
4 : something which covers or embraces a broad range of elements or factors <decided to expand ⋯ by building new colleges under a federation umbrella ― Diane Ravitch>