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1. A collection of objects laid on top of each other
   - pile, mound, agglomerate, cumulation, cumulus
    
2. (often followed by 'of') a large number, amount or extent
   "a heap of letters";
   - batch, deal, flock, good deal, great deal, hatful, lot, mass, mess, mickle [archaic], mint, mountain, muckle, passel [US], peck, pile, plenty, pot, quite a little, raft, sight, slew, spate, stack, tidy sum, wad, bunch
    
3. A car that is old and unreliable
   "the fenders had fallen off that old heap";
   - bus, jalopy, hooptie [US], clunker [N. Amer], banger [Brit]
    
4. (computing) a data structure consisting of trees in which each node is greater than all its children

1. Bestow in large quantities
   "He heaped him with work"; "She heaped scorn upon him"
    
2. Arrange in stacks
   "heap firewood around the fireplace";
   - stack, pile
    
3. Fill to overflow
   "heap the platter with potatoes"

Derived forms: heaps, heaped, heaping

See also: heap up

Type of: accumulation, aggregation, arrange, assemblage, auto, automobile, car, collection, dysphemism, fill, fill up, give, large indefinite amount, large indefinite quantity, machine, make full, motorcar, set up

Encyclopedia: Heap