1. to come together or bring together in one place
2. to put together the parts of something to make a complete object

Examples

• The students assembled in the gymnasium for the presentation.
• Citizens assembled outside the courthouse to protest.
• We need to assemble the bookshelf using these instructions.
• The factory workers assemble cars on the production line.
• Please assemble all the documents before the meeting.
• The team will assemble at 9 AM sharp.
• It took hours to assemble the complicated puzzle.