1. to bring together or gather in one place
2. to put together the parts of something

Examples

• The teacher assembles the students in the gymnasium.
• She assembles the puzzle pieces carefully.
• The factory assembles cars on the production line.
• The committee assembles every Tuesday morning.
• He assembles the furniture using the instruction manual.
• The crowd assembles in the town square for the festival.
• The mechanic assembles the engine parts.