Swarming

Noun

 * 1) The action of a swarm.
 * 2)  A crime where an unsuspecting innocent bystander is attacked by several culprits at once, with no known motive.

Verb
swarming

Thesaurus
abounding, abundant, alive with, blooming, bountiful, bristling, bursting, bursting out, close, compact, copious, crammed, crawling, creative, creeping, crowded, crowding, dense, emigration, expatriation, exuberant, fecund, fertile, firm, flight, flourishing, fructiferous, fruitful, full, generous, honeycombed, immigration, in profusion, in-migration, infestation, intermigration, invasion, jam-packed, jammed, lavish, lousiness, lush, luxuriant, migration, out-migration, overabundant, overbounteous, overcopious, overexuberant, overflowing, overgenerous, overlavish, overliberal, overluxuriant, overmuch, overnumerous, overplenteous, overplentiful, overplenty, overpopulated, overpopulous, overprolific, overrunning, overspreading, overswarming, packed, passage, permeated, plague, plenteous, plentiful, plethoric, populous, pregnant, prodigal, productive, profuse, proliferating, proliferous, prolific, pullulating, ravage, remigration, replete, rich, rife, riotous, run, saturated, seminal, serried, shot through, solid, studded, superabundant, swarm, teeming, thick, thick as hail, thick with, thick-coming, thriving, thronged, thronging, transmigration, trek, uberous

Anagrams

 * swingarm
 * warmings