Synonyms for Impounds:

v.

•encloses (verb)
contains, embraces, covers, corrals, encircles, Traps, holds, envelops, surrounds, encloses, encompasses.
•imprisons (verb)
collars, cages, harnesses, handcuffs, fetters, confines, straight jackets, sentences, locks up, bridles, incarcerates, condemns, fences, imprisons, jails, tethers, shackles, manacles.
•takes (verb)
gets, reaps, monopolizes, Levies, collects, bags, acquires, grabs, amasses, gathers, procures, usurps, deprives, annexes, captures, harvests, confiscates, catches, nabs, appropriates, commandeers, abducts, takes.