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 vibrator consisting of a thin strip of stiff material that vibrates to produce a tone when air streams over it; "the clarinetist fitted a new reed onto his mouthpiece"
United States physician who proved that yellow fever is transmitted by mosquitoes (1851-1902)
United States journalist who reported on the October Revolution from Petrograd in 1917; founded the Communist Labor Party in America in 1919; is buried in the Kremlin in Moscow (1887-1920)
tall woody perennial grasses with hollow slender stems especially of the genera Arundo and Phragmites
a journey or route all the way around a particular place or area; "they took an extended tour of Europe"; "we took a quick circuit of the park"; "a ten-day coach circuit of the island"
make a tour of a certain place; "We toured the Provence this summer"
activity that refreshes and recreates; activity that renews your health and spirits by enjoyment and relaxation; "time for rest and refreshment by the pool"; "days of joyous recreation with his friends"
an arrow that is shot from a crossbow; has a head with four edges
an angry dispute; "they had a quarrel"; "they had words"
have a disagreement over something; "We quarreled over the question as to who discovered America"; "These two fellows are always scrapping over something"