7 letters · 9 points in Scrabble
noun a grouping of a number of similar things
verb come together as in a cluster or flock
verb gather or cause to gather into a cluster
originThe noun is derived from Middle English cluster (“bunch, cluster, spray; compact body or mass, ball”) [and other forms], from Old English cluster, clyster (“cluster, bunch, branch”), from Proto-Germanic *klas-, *klus- (“to clump, lump together”) (possibly from Proto-Indo-European *gel- (“to ball up; to clench; to amass”)) + *-þrą (suffix forming nouns denoting an instrument or tool). The English…
Etymology from Wiktionary, CC BY-SA 3.0