First Known Use: before 12th century
Dictionary
1cluster
noun clus·ter \ˈkləs-tər\
: a group of things or people that are close together
Full Definition of CLUSTER
: a number of similar things that occur together: as a : two or more consecutive consonants or vowels in a segment of speech b : a group of buildings and especially houses built close together on a sizable tract in order to preserve open spaces larger than the individual yard for common recreation c : an aggregation of stars or galaxies that appear close together in the sky and are gravitationally associated d : a larger than expected number of cases of disease (as leukemia) occurring in a particular locality, group of people, or period of time
— clus·tery \-t(ə-)rē\ adjective
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Origin of CLUSTER
Middle English, from Old English clyster; akin to Old English clott clot
Related to CLUSTER
2cluster
verb
: to come together to form a group
clus·teredclus·ter·ing \-t(ə-)riŋ\
Full Definition of CLUSTER
transitive verb
1
: to collect into a cluster <cluster the tents together>
2
: to furnish with clusters
intransitive verb
: to grow, assemble, or occur in a cluster <they clustered around the fire>
See cluster defined for English-language learners
First Known Use of CLUSTER
14th century
Related to CLUSTER
- Synonyms
- assemble, collect, concenter, concentrate, conglomerate, congregate, convene, converge, forgather (or foregather), gather, meet, rendezvous
- Antonyms
- break up, disband, disperse, split (up)
CLUSTER Defined for Kids
1cluster
noun clus·ter \ˈklə-stər\
Definition of CLUSTER for Kids
: a number of similar things growing or grouped closely together : bunch <a cluster of houses> <a flower cluster>
2cluster
verb
clus·teredclus·ter·ing
Definition of CLUSTER for Kids
: to grow, collect, or assemble in a bunch
Medical Dictionary
cluster
noun clus·ter \ˈkləs-tər\
Medical Definition of CLUSTER
: a larger than expected number of cases of disease (as leukemia) occurring in a particular locality, group of people, or period of time
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