labor vs brotherhood

labor and brotherhood both are nouns.

Word	Noun	Adjective	Verb	Adverb
labor	Yes	No	Yes	No
brotherhood	Yes	No	No	No

labor (noun)	brotherhood (noun)
productive work (especially physical work done for wages)	the feeling that men should treat one another like brothers
any piece of work that is undertaken or attempted	people engaged in a particular occupation
a social class comprising those who do manual labor or work for wages	an organization of employees formed to bargain with the employer
an organized attempt by workers to improve their status by united action (particularly via labor unions) or the leaders of this movement	the kinship relation between a male offspring and the siblings
concluding state of pregnancy; from the onset of contractions to the birth of a child

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