From The Collaborative International Dictionary of English v.0.48:
heaps \heaps\ n.
a large quantity. See heap, senses 2 and 3; as, he made
heaps of money in the stock market.
Syn: tons, dozens, lots, piles, scores, stacks, loads, rafts,
slews, wads, oodles, gobs, scads, lashings.
[WordNet 1.5]