broth·er·hood / ˈbrə[voicedth]ərˌhoŏd/ • n. 1. the relationship between brothers. ∎ the feeling of kinship with and closeness to a group of people or all people: a gesture of solidarity and brotherhood.2. an association, society, or community of people linked by a common interest, religion, or trade: a religious brotherhood. ∎ a trade union.
an association or guild; a profession, person, or things of like kind or interest; a fellowship. See also fraternity.
Examples: brotherhood of blood, 1860; of lofty elms, 1814; of monks and friars, 1528; of mountains, 1843; of the sons of God, 1526.