United States tennis player who in 1938 was the first to win the Australian and French and English and United States singles championship in the same year (1915-2000)
a piece of land prepared for playing a game; "the home crowd cheered when Princeton took the field"
the circumstances under which competition occurs; "the government's objective is to insure a genuinely level playing field for American industry and commerce in Europe"
not tried or tested by experience; "unseasoned artillery volunteers"; "still untested in battle"; "an illustrator untried in mural painting"; "a young hand at plowing"
the metabolic processes whereby certain organisms obtain energy from organic molecules; processes that take place in the cells and tissues during which energy is released and carbon dioxide is produced and absorbed by the blood to be transported to the lungs
a single complete act of breathing in and out; "thirty respirations per minute"
respirator that produces alternations in air pressure in a chamber surrounding a patient's chest to force air into and out of the lungs thus providing artificial respiration
green color or pigment; resembling the color of growing grass
an area of closely cropped grass surrounding the hole on a golf course; "the ball rolled across the green and into the trap"
a river that rises in western Wyoming and flows southward through Utah to become a tributary of the Colorado River
an environmentalist who belongs to the Green Party
United States labor leader who was president of the American Federation of Labor from 1924 to 1952 and who led the struggle with the Congress of Industrial Organizations (1873-1952)
of the color between blue and yellow in the color spectrum; similar to the color of fresh grass; "a green tree"; "green fields"; "green paint"
not fully developed or mature; not ripe; "unripe fruit"; "fried green tomatoes"; "green wood"
looking pale and unhealthy; "you're looking green"; "green around the gills"
concerned with or supporting or in conformity with the political principles of the Green Party
sudden expulsion of air from the lungs that clears the air passages; a common symptom of upper respiratory infection or bronchitis or pneumonia or tuberculosis
exhale abruptly, as when one has a chest cold or congestion; "The smoker coughs all day"