green

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The hue of that portion of the visible spectrum lying between yellow and blue, evoked in the human observer by radiant energy with wavelengths of approximately 490 to 570 nanometers; any of a group of colors that may vary in lightness and saturation and whose hue is that of the emerald or somewhat less yellow than that of growing grass; one of the additive or light primaries; one of the psychological primary hues.
• noun Something green in color.
• noun Green growth or foliage, especially.
• noun The branches and leaves of plants used for decoration.
• noun Leafy plants or plant parts eaten as vegetables.
• noun A grassy lawn or plot, especially.
• noun A grassy area located usually at the center of a city or town and set aside for common use; a common.
• noun Sports A putting green.
• noun A green uniform.
• noun Slang Money.
• noun A supporter of a social and political movement that espouses global environmental protection, bioregionalism, social responsibility, and nonviolence.
• adjective Of the color green.
• adjective Abounding in or covered with green growth or foliage.
• adjective Made with green or leafy vegetables.
• adjective Characterized by mild or temperate weather.
• adjective Not mature or ripe.
• adjective Not grown up; young.
• adjective Vigorous or robust.
• adjective Lacking training or experience. synonym: young.
• adjective Lacking sophistication or worldly experience; naive.
• adjective Easily duped or deceived; gullible.
• adjective Not yet fully processed, especially.
• adjective Not dried or aged.
• adjective Not cured or tanned.
• adjective Beneficial to the environment or less harmful to the environment than others.
• adjective Favoring or supporting environmentalism.
• adjective Having a sickly or unhealthy appearance.
• adjective Envious or jealous.
• adjective Being a trail, as for skiing, marked with a sign having a green circle, indicating the easiest level of difficulty.
• intransitive verb To become green.
• intransitive verb To make green.
• intransitive verb To design or organize so as to be beneficial or less harmful to the environment, especially in reducing the amount of pollution created.
• idiom (around/about) Pale or sickly in appearance.

from The Century Dictionary.

• noun In golf: The whole links or golf-course.
• noun The putting-green, or portion of the links, devoid of hazards, within twenty yards of a hole.
• noun A name sometimes given to Schweinfurt green.
• noun An acid dyestuff made by sulphonating the foregoing and designated as azin green S.
• noun Same as methyl green (which see, under green).
• noun A basic coal-tar color of the diphenyl-naphthyl-methane type.
• In oyster-culture, to give (oysters) a green tinge about the gills by putting them in pits.
• Of the color of ordinary foliage, or of unripe vegetation generally; verdant. See II., 1.
• Immature with respect to age or judgment; raw; unskilled; easily imposed upon.
• Due to or manifesting immaturity; proceeding from want of knowledge or judgment.
• New; fresh; recent: as, a green wound; a green hide.
• Full of life and vigor; fresh and vigorous; flourishing; undecayed.
• Pale; sickly; wan; of a greenish-pale color.