Noun cluster has 1 sense
  1. bunch, clump, cluster, clustering - a grouping of a number of similar things; "a bunch of trees"; "a cluster of admirers"
    --1 is a kind of agglomeration
    --1 has particulars:
     knot; swad; tuft, tussock; Northern Cross; Omega Centauri; Pleiades
    Derived forms: verb cluster1, verb cluster2
,Verb cluster has 2 senses
  1. cluster, constellate, flock, clump - come together as in a cluster or flock; "The poets constellate in this town every summer"
    --1 is one way to meet, gather, assemble, forgather, foregather
    Derived forms: noun cluster1, noun clustering1
    Sample sentence:
    The crowds cluster in the streets
  2. bunch, bunch up, bundle, cluster, clump - gather or cause to gather into a cluster; "She bunched her fingers into a fist"; "The students bunched up at the registration desk"
    --2 is one way to form
    Derived forms: noun cluster1, noun clustering1
    Sample sentences:
    Something ----s
    Somebody ----s something
    Somebody ----s something PP
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