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"
a formation of military planes maintained over ground operations or targets; "an air umbrella over England"
a lightweight handheld collapsible canopy
covering or applying simultaneously to a number of similar items or elements or groups; "an umbrella organization"; "umbrella insurance coverage"
a mechanical device that prevents a vessel from moving
a central cohesive source of support and stability; "faith is his anchor"; "the keystone of campaign reform was the ban on soft money"; "he is the linchpin of this firm"
a television reporter who coordinates a broadcast to which several correspondents contribute
secure a vessel with an anchor; "We anchored at Baltimore"
fix firmly and stably; "anchor the lamppost in concrete"