Meaning

• A group or bunch of several discrete items that are close to each other.

  "A cluster of flowers grew in the pot."

• A number of individuals grouped together or collected in one place; a crowd; a mob.

• A group of galaxies or stars that appear near each other.

  "The Pleiades cluster contains seven bright stars."

• A sequence of two or more words that occur in language with high frequency but are not idiomatic; a chunk, bundle, or lexical bundle.

  "examples of clusters would include "in accordance with", "the results of" and "so far""

• A secundal chord of three or more notes.

• A group of consonants.

  "The word "scrub" begins with a cluster of three consonants."

• A group of computers that work together.

• A logical data storage unit containing one or more physical sectors (see block).

• A significant subset within a population.

• Set of bombs or mines.

• A small metal design that indicates that a medal has been awarded to the same person before.

• Euphemism of clusterfuck.

• An ensemble of bound atoms or molecules, intermediate in size between a molecule and a bulk solid.

Meaning

• To form a cluster or group.

  "The children clustered around the puppy."

• To collect into clusters.

• To cover with clusters.