[1] : The Collaborative International Dictionary of English v.0.48

brotherhood \broth"erhood\, n. brother + -hood.
   1. the state of being brothers or a brother.
      1913 webster

   2. an association for any purpose, as a society of monks; a
      fraternity.
      1913 webster

   3. the whole body of persons engaged in the same business, --
      especially those of the same profession; as, the legal or
      medical brotherhood.
      1913 webster

   4. persons, and, poetically, things, of a like kind.
      1913 webster

            a brotherhood of venerable trees.     --wordsworth.
      1913 webster

   syn: fraternity; association; fellowship; sodality.
        1913 webster

[2] : WordNet (r) 2.0

brotherhood
     n 1: the kinship relation between a male offspring and the
          siblings
     2: people engaged in a particular occupation; "the medical
        fraternity" syn: fraternity, sodality
     3: the feeling that men should treat one another like brothers
     4: an organization of employees formed to bargain with the
        employer; "you have to join the union in order to get a
        job" syn: union, labor union, trade union, trades
        union
see also:
fraternity sodality union labor union trade union trades union 

[3] : Moby Thesaurus II by Grady Ward, 1.0

98 moby thesaurus words for "brotherhood":
   affectionateness, affiliation, agnation, alliance, ancestry,
   association, benignancy, benignity, blood, blood relationship,
   boon companionship, brotherliness, brothership, camaraderie,
   chumship, circle, clique, club, cognation, colleagueship,
   common ancestry, common descent, community, community of interest,
   companionship, compassion, comradeship, confraternity, confrerie,
   connection, consanguinity, consortship, country club, cousinhood,
   cousinship, enation, esprit de corps, fatherhood,
   feeling of kinship, fellow feeling, fellowship, filiation,
   fraternal feeling, fraternal order, fraternalism, fraternity,
   freemasonry, friendship, goodness, goodness of heart, graciousness,
   guild, heart of gold, humaneness, humanity, kindheartedness,
   kindliness, kindly disposition, kindness, kindred, kinship, league,
   loving kindness, maternity, matrilineage, matriliny, matrisib,
   matrocliny, motherhood, niceness, order, organization, paternity,
   patrilineage, patriliny, patrisib, patrocliny, propinquity,
   relation, relationship, secret society, set, sibship, sisterhood,
   sisterliness, sistership, society, sodality, softheartedness,
   sorority, soul of kindness, sympathy, tenderheartedness,
   ties of blood, union, warmheartedness, warmth, warmth of heart

Brotherhood >> B Words
Brotherhood, definition of term: Brotherhood
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