<p><strong>Noun</strong></p><ul><li>A light, small, portable, usually circular cover for protection from rain or sun, consisting of a fabric held on a collapsible frame of thin ribs radiating from the top of a carrying stick or handle.</li><li>The saucer- or bowl-shaped, gelatinous body of a jellyfish; bell.</li><li>Something that covers or protects from above, as military aircraft safeguarding surface forces: an air umbrella.</li><li>Any general kind of protection: a price umbrella.</li><li>Something, as an organization or policy, that covers or encompasses a number of groups or elements.</li></ul><p><strong>Adjective</strong></p><ul><li>Shaped like or intended to perform the function of an umbrella.</li><li>Having the quality or function of covering or applying simultaneously to a number of similar items, elements, or groups: an umbrella organization; umbrella coverage in an insurance policy.</li></ul>