Pronunciation

change

Singular
cluster

Plural
clusters

 
A cluster of mushrooms.
 
A star cluster.
  1. (countable) A cluster is anything that is more than one thing put together.
    In the market, you can find a cluster of bananas.

Plain form
cluster

Third-person singular
clusters

Past tense
clustered

Past participle
clustered

Present participle
clustering

  1. (transitive) If something is clustering, it is forming a cluster.