What does BOND mean?

noun

1. an electrical force linking atoms
2. a certificate of debt (usually interest-bearing or discounted) that is issued by a government or corporation in order to raise money; the issuer is required to pay a fixed sum annually until maturity and then a fixed sum to repay the principal
3. a connection based on kinship or marriage or common interest“the shifting alliances within a large family”
4. (criminal law) money that must be forfeited by the bondsman if an accused person fails to appear in court for trial“the judge set bail at $10,000”
5. a restraint that confines or restricts freedom (especially something used to tie down or restrain a prisoner)
6. a connection that fastens things together
7. a superior quality of strong durable white writing paper; originally made for printing documents
8. the property of sticking together (as of glue and wood) or the joining of surfaces of different composition“the mutual adhesiveness of cells”