noun
assembly
The bringing together of separate parts into an organized whole.
The assembly listens to a speaker in the community hall.

Etymology
Old French assemblee named a gathering or coming together. Applied to separate parts, assembly makes that gathering constructive: the pieces are brought together to form an organized whole.
In context
presiding over the senate and assembly and handling the business of the city
More examples
- The kit includes instructions for assembly.
- The mechanic replaces the damaged brake assembly.
- The national assembly debated the measure.
Forms
assembly · assemblies
assemble verb — gather together
Similar words
- gathering
- Any group brought together.
- convention
- A formal gathering with a particular purpose.