To tabulate is to arrange data or information in columns and tables.(verb)
When you do a study and find out how much a pack of notebook paper costs in eight different stores and then you create a table with the name of the store along one side and the prices and sizes of paper packs along the other, this is an example of a time when you tabulate the information learned in your study.
See tabulate in Webster's New World College Dictionary
Origin: < LL tabulatus, pp. of tabulare: see tablature
See tabulate in American Heritage Dictionary 4
transitive verb tab·u·lat·ed, tab·u·lat·ing, tab·u·lates
Origin: Latin tabula, writing
Origin: + -ate1.
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