Brotherhood

1. n. Persons, and, poetically, things, of a like kind.
2. n. The state of being brothers or a brother.
3. n. An association for any purpose, as a society of monks; a fraternity.
4. n. The whole body of persons engaged in the same business, — especially those of the same profession; as, the legal or medical brotherhood.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.