Synonyms for much:
many, clump, billion, ton, swath, thrice, considerably, thousand, torrent, volley, unspeakably, gazillion, zillion, host, hunk, million, vastly, tidal wave, profusely, ocean, dollop, extremely, infinity, trillion, panoply, umpteen, slather, proliferation, ream.
frequency, material, plurality, temporal, score, irregularity, asynchronous.
basis, rate, twice, length.
far, irregular, quite.
a great deal
heap, world, sight, mass, power, mountain, lot, barrel, abundance, pile, wealth, plenty, pack, profusion, a great deal.
deal, a lot.
good, pretty, substantial.
not a little.
like anythingorblazesorcrazy etc., very much.
full, considerable, many, scads, substantial.
very much, extremely.
greatly, a lot (adverb)
considerably, often, hugely, over and over, again and again, eminently, oft, repeatedly, extremely, frequently, a great deal, surpassingly, very, exceedingly.
well-nigh, all but.
often, oft, oftentimes, ofttimes, over and over.
over and over again (adverb)
Sense 2 (noun)
frequency, long, length, rate, full, irregularity, basis, time, irregular, substantial, many.
Sense 3 (noun)
greatly, extremely, particularly, really, very.
a great deal (noun)
big, lots, power, abundance, pile, lot, barrel, world, pack, multiplicity, volume, mess, profusion, plenty, mountain, sight, mass, oodles, peck, wealth, a lot, heap, very much.