1clus·ter 
/ˈklʌstɚ/ noun
plural clus·ters /ˈklʌstɚ/ noun [count] : a group of things or people that are close together
▪ a flower cluster ▪ a cluster of cottages along the shore ▪ A small cluster of people had gathered at the scene of the accident. ▪ clusters of grapes
▪ a flower cluster ▪ a cluster of cottages along the shore ▪ A small cluster of people had gathered at the scene of the accident. ▪ clusters of grapes
