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Synonyms for Accumulator (same or very similar meaning)

WordNet sense 1 (a person who is employed to collect payments (as for rent or taxes)):
collector, gatherer

WordNet sense 2 (a voltaic battery that stores electric charge):
storage battery

WordNet sense 3 ((computer science) a register that has a built-in adder that adds an input number to the contents of the register):
accumulator register

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