nouns
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)
an environmentalist who belongs to the Green Party
is a member of
an environmentalist political party
is a type of (narrower)
someone who works to protect the environment from destruction or pollution
a river that rises in western Wyoming and flows southward through Utah to become a tributary of the Colorado River