Princeton's WordNet

1. wad(noun)

   a small mass of soft material

   Synonyms:
   chew, mass, cud, lot, batch, hatful, good deal, quite a little, chaw, mountain, plug, heap, quid, muckle, passel, spate, great deal, slew, mess, mint, tidy sum, raft, plenty, mickle, peck, stack, sight, pot, pile, flock, deal

2. batch, deal, flock, good deal, great deal, hatful, heap, lot, mass, mess, mickle, mint, mountain, muckle, passel, peck, pile, plenty, pot, quite a little, raft, sight, slew, spate, stack, tidy sum, wad(noun)

   (often followed by `of') a large number or amount or extent

   Synonyms:
   push-down list, flock, destiny, bulk, cud, chaw, multitude, upsurge, atomic reactor, pile, quid, deal, spile, smokestack, caboodle, crapper, commode, throne, troop, fold, bay window, stool, softwood, chew, gage, push-down store, push-down storage, weed, hand, heap, surge, kitty, jalopy, smoke, muddle, band, lot, passel, slew, vision, freshet, potbelly, mussiness, jam, muss, hole, flowerpot, mint candy, visual modality, quite a little, clutch, luck, plentifulness, toilet, masses, ken, mess hall, down, atomic pile, messiness, the great unwashed, peck, tummy, agglomerate, sight, volume, wad, plug, mount, potty, set, nap, portion, skunk, push-down stack, chain reactor, rush, mound, good deal, big money, galvanic pile, pickle, sens, bundle, fate, voltaic pile, draw, stilt, green goddess, people, visual sense, sess, batch, view, pot, stack, mess, bunch, spate, plenteousness, locoweed, piling, bus, bargain, mountain, survey, business deal, plenty, potentiometer, mint, dope, plentitude, cumulus, plenitude, raft, jackpot, mickle, can, big bucks, kettle of fish, mass, tidy sum, corporation, circumstances, hatful, potful, megabucks, circle, grass, great deal, trade, cumulation, fix, muckle, fortune, hoi polloi

3. chew, chaw, cud, quid, plug, wad(verb)

   a wad of something chewable as tobacco

   Synonyms:
   tidy sum, pot, peck, quid, mastication, hype, lot, quid pro quo, batch, raft, quite a little, passel, hack, fire hydrant, chewing, pile, muckle, stack, rechewed food, mass, spark plug, good deal, male plug, mountain, sight, stopple, plenty, deal, plug, mess, jade, wad, flock, hatful, mickle, slew, fireplug, heap, great deal, pound, chaw, ballyhoo, mint, stopper, sparking plug, spate, chew, cud, pound sterling, nag, hoopla, manduction

4. pack, bundle, wad, compact(verb)

   compress into a wad

   Synonyms:
   mob, wad, pile, cluster, backpack, bunch up, jampack, pack together, pack, press, bunch, bundle up, ram, tamp, clump, roll up, load down, tamp down, bundle, chock up, throng, contract, take, carry, squeeze, cram, constrict, practice bundling, compress, jam, compact

5. jam, jampack, ram, chock up, cram, wad(verb)

   crowd or pack to capacity

   Synonyms:
   crash, mob, wad, pile, get up, swot, bone, force, obturate, pack, drive, swot up, crush, chock up, close up, grind away, block, impede, obstruct, bundle, cram, jampack, ram down, ram, mug up, throng, bone up, pound, drum, compact, jam, occlude