Real Dictionary

bind
verb: If something binds people together, it makes them feel as if they are all part of the same group or have something in common.
verb: If you are bound by something such as a rule, agreement, or restriction, you are forced or required to act in a certain way.
verb: If you bind something or someone, you tie rope, string, tape, or other material around them so that they are held firmly.
verb: When a book is bound, the pages are joined together and the cover is put on.

bind in American English
to tie together; make fast or tight, as with a rope or band
intransitive verb: to become compact or solid; cohere
transitive verb: to fasten or secure with a band or bond

bind in British English
verb: to make or become fast or secure with or as if with a tie or band