labor vs Manhattan Project

labor and Manhattan Project both are nouns.

Word	Noun	Adjective	Verb	Adverb
labor	Yes	No	Yes	No
Manhattan Project	Yes	No	No	No

labor (noun)	Manhattan Project (noun)
productive work (especially physical work done for wages)	code name for the secret United States project set up in 1942 to develop atomic bombs for use in World War II
any piece of work that is undertaken or attempted	a former United States executive agency that was responsible for developing atomic bombs during World War II
a social class comprising those who do manual labor or work for wages
an organized attempt by workers to improve their status by united action (particularly via labor unions) or the leaders of this movement
concluding state of pregnancy; from the onset of contractions to the birth of a child

labor (verb)	Manhattan Project (verb)
undergo the efforts of childbirth
work hard
strive and make an effort to reach a goal