What is the meaning of clump?

noun

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

verb

• Make or move along with a sound as of a horse's hooves striking the ground.
  • synonyms: clop, clunk, plunk
• Come together as in a cluster or flock.
  • usage: "The poets constellate in this town every summer"
  • synonyms: cluster, constellate, flock
• Walk clumsily.
  • synonyms: clomp
• Gather or cause to gather into a cluster.
  • usage: "She bunched her fingers into a fist"
  • synonyms: bunch, bunch up, bundle, cluster