To tie or fasten something tightly. She used a rope to bind the packages together.
To impose a legal or moral obligation on someone. The contract will bind both parties to the agreed terms.
To cause to cohere or stick together. The egg will bind the ingredients in the cake batter.
To wrap or encircle with a bandage or similar material. The nurse will bind the wound to stop the bleeding.
To make a book by fastening the pages together and attaching a cover. They will bind the manuscript into a hardcover book.