chain
n. countable B1 Intermediate Oxford US //ˈtʃeɪn// UK //tʃˈeɪn// chain
n. a series of metal rings connected together, used to pull, hold, or fasten things. It can also mean a group of shops or businesses that all have the same name and owner.
n. a series of interconnected metal links used for transmitting power or securing objects; by extension, a group of businesses operating under a single brand and ownership.
The dog is on a long metal chain.
The local coffee shop was eventually bought out by a large international chain.
The anchor is attached to a heavy iron chain that prevents the ship from drifting during the storm.
Usage
Often used in the plural when referring to restraints; used as a collective noun when describing a series of related events or businesses.