cluster
noun [ C ]
uk/ˈklʌstər/ usa group of similar things that are close together in a small area:
There is a cluster of hi-tech businesses in the city's industrial park.
a group of similar events that happen within a small area or among a small group of people:
The study will look at an apparent cancer cluster among workers at the factory.
IT
a group of computers connected together to work as one larger computer and to improve their performance
cluster
verb [ I ]
uk/ˈklʌstər/ usto happen a lot in the same small area or in the same way:
Most young firms tend to cluster in the finance, IT, telecoms, and retail industries.
to stand or be positioned close together in a group:
People clustered around the noticeboard to read the announcement.