1. To bring or to call together into a group, one place, company, body, or a whole: "The judge assembled the jury."
2. To fit together the parts or pieces of; such as, to assemble a machine; to assemble data; or to assemble information for a report.
3. To gather together; to congregate.
4. Etymology: from Old French assembler, from Latin assimulare, "to make like, to think like"; later "to gather together"; from ad-, "to" + simul, "together".