bond

noun:a thing used to tie or fasten things together
- They used a strong rope as a bond to secure the boat to the dock.
noun:a certificate issued by an organization promising to pay back borrowed money at a fixed rate of interest at a specified time
- He invested in a government bond to save for his retirement.
noun:a chemical link between atoms in a molecule
- A hydrogen bond helps water molecules stick together, giving water its unique properties.
verb:to join or be joined to something else, especially by means of an adhesive substance, heat, or pressure
- The special glue will bond the plastic to the metal surface.
verb:to establish a relationship or connection with someone based on shared feelings, interests, or experiences
- The team members began to bond during the challenging project.