chain

A chain is a series of round pieces of material joined together to make a line.

Example: He got her a gold chain necklace for her birthday.

A series of interconnected things.

Example: This led to an unfortunate chain of events.

A chain of stores is a group of stores that all have the same name, such as McDonald's restaurants or GAP clothing stores.

If you chain things together, you connect them in a line.

If you chain A to B, you connect A to B with a chain.

Example: The dog was chained to the tree.