It's a very common root, appearing in many English words, often with slight variations in spelling. Here are some examples:
* Bind: The verb itself, meaning to tie or fasten together.
* Bound: The past participle of "bind."
* Binding: The noun form, referring to something that binds or ties together.
* Unbound: The opposite of bound, meaning free or not tied together.
* Abound: To be plentiful or abundant.
* Bond: A connection or link between two things.
* Bindweed: A type of climbing plant that twines around other plants.
* Bandage: A strip of cloth used to bind a wound.
You can see how the meaning of "tie or fasten" is present in all these words, even if it's not always the primary meaning.