converge

(verb) be adjacent or come together. Synonyms: meet. Example: "The lines converge at this point."

(verb) approach a limit as the number of terms increases without limit.

(verb) move or draw together at a certain location. Example: "The crowd converged on the movie star."

(verb) come together so as to form a single product. Example: "Social forces converged to bring the fascists back to power."