joiningstage

2. The point in a process where separate parts are united into one whole.

At the joining stage, the two halves of the model are fused into a single piece.

3. A place or platform where people or things come together.

The joining stage at the festival was where all the parade groups met.

4. In manufacturing, the step where components are fastened or welded.

Quality checks happen right after the joining stage on the factory line.