Definitions:

1. A calculator that keeps a record of the number of times something happens. NOUN
   • The clerk acted as the official tabulator during the contest.
2. A person, machine, or device that arranges, counts or records information systematically, often in table form. NOUN
   • The election results were processed by an electronic tabulator.

Synonyms:

• calculator
• compiler
• counter
• listing device
• tally machine