nouns
the kinship relation between a male offspring and the siblings
is a type of (narrower)
(anthropology) relatedness or connection by blood or marriage or adoption
people engaged in a particular occupation
"the medical fraternity"
the feeling that men should treat one another like brothers
is a type of (narrower)
a feeling of liking for another person; enjoyment in their company
an organization of employees formed to bargain with the employer
"you have to join the union in order to get a job"