cluster

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A group of the same or similar elements gathered or occurring closely together; a bunch: "She held out her hand, a small tight cluster of fingers” ( Anne Tyler).
2. n. Linguistics Two or more successive consonants in a word, as cl and st in the word cluster.
3. n. A group of academic courses in a related area.
4. v. To gather or grow into bunches.
5. v. To cause to grow or form into bunches.

Century Dictionary and Cyclopedia

1. n. A number of things, as fruits, growing naturally together; a bunch, particularly ot grapes or other fruit growing similarly.
2. n. A number of persons or things of any kind collected or gathered into a close body; a nearly conjoined group or collection: as, a cluster of islands.
3. To form or constitute a cluster or clusters; grow or be placed in clusters or groups; gather in a group or groups.
4. To collect into a cluster or group.
5. To produce in a cluster or clusters.
6. To cover with clusters.

Wiktionary

1. n. A group or bunch of several discrete items that are close to each other.
2. n. astronomy A group of galaxies or stars that appear near each other.
3. n. music A secundal chord of three or more notes.
4. n. phonetics A group of consonants.
5. n. computing A group of computers that work together.
6. n. computing A logical data storage unit containing one or more physical sectors (see block).
7. n. statistics A significant subset within a population.
8. n. military Set of bombs or mines.
9. n. army A small metal design that indicates that a medal has been awarded to the same person before.
10. v. intransitive To form into a cluster.

GNU Webster's 1913

1. n. A number of things of the same kind growing together; a bunch.
2. n. A number of similar things collected together or lying contiguous; a group.
3. n. A number of individuals grouped together or collected in one place; a crowd; a mob.
4. v. To grow in clusters or assemble in groups; to gather or unite in a cluster or clusters.
5. v. To collect into a cluster or clusters; to gather into a bunch or close body.

WordNet 3.0

1. v. gather or cause to gather into a cluster
2. n. a grouping of a number of similar things
3. v. come together as in a cluster or flock