clump

nouns

a grouping of a number of similar things
"a bunch of trees"; "a cluster of admirers"
bunch, clump, cluster, clustering
a compact mass
"a ball of mud caught him on the shoulder"
ball, chunk, clod, clump, glob, lump
a heavy dull sound (as made by impact of heavy objects)
clump, clunk, thud, thump, thumping

verbs

make or move along with a sound as of a horse's hooves striking the ground
clop, clump, clunk, plunk
come together as in a cluster or flock
"The poets constellate in this town every summer"
clump, cluster, constellate, flock
walk clumsily
clomp, clump
gather or cause to gather into a cluster
"She bunched her fingers into a fist"
bunch, bunch up, bundle, clump, cluster