WordNet sense 1 (a low woody perennial plant usually having several major branches):

shrub

WordNet sense 2 (43rd President of the United States; son of George Herbert Walker Bush (born in 1946)):

Dubya, Dubyuh, George Bush, George W. Bush, George Walker Bush, President Bush, President George W. Bush

WordNet sense 3 (United States electrical engineer who designed an early analogue computer and who led the scientific program of the United States during World War II (1890-1974)):

Vannevar Bush

WordNet sense 4 (vice president under Reagan and 41st President of the United States (born in 1924)):

George H.W. Bush, George Herbert Walker Bush

WordNet sense 5 (dense vegetation consisting of stunted trees or bushes):

chaparral, scrub

WordNet sense 6 (hair growing in the pubic area):

pubic hair, crotch hair

WordNet sense 7 (not of the highest quality or sophistication):

bush-league

WordNet sense 8 (of low or inferior quality):

inferior