umbrella

• a lightweight handheld collapsible canopy
• a formation of military planes maintained over ground operations or targets
• having the function of uniting a group of similar things
• covering or applying simultaneously to a number of similar items or elements or groups
• A shade, screen, or guard, carried in the hand for sheltering the person from the rays of the sun, or from rain or snow. It is formed of silk, cotton, or other fabric, extended on strips of whalebone, steel, or other elastic material, inserted, or fastened to, a rod or stick by means of pivots or hinges, in such a way as to allow of being opened and closed with ease
• The umbrellalike disk, or swimming bell, of a jellyfish
• Any marine tectibranchiate gastropod of the genus Umbrella, having an umbrella-shaped shell

Report error with a word Suggest a new definition

You can also check definition for umbrella on wikipedia or google (link opens in new window)