The meaning of CLUSTER is a number of similar things that occur together. How to use cluster in a sentence.

CLUSTER definition: 1. a group of similar things that are close together, sometimes surrounding something: 2. a group…. Learn more.

2 days ago · The Department of Defense has quietly signed a $210 million deal to buy advanced cluster shells from one of Israel’s state-owned arms companies, marking unusually large new commitments …

Aug 12, 2025 · Cluster headache is a rare and severe type of headache that causes intense pain in or around the eye on one side of the head. It's typically the most painful type of headache.

3 days ago · Cluster flies are large, harmless flies that may enter your home in search of warmth. There are several easy methods for controlling the nuisance.

If people cluster together, they gather together in a small group. The passengers clustered together in small groups.

When you and your friends huddle awkwardly around the snack table at a party, whispering and trying to muster enough nerve to hit the dance floor, you’ve formed a cluster. Cluster comes to us from the …