coalesce
verb
Definition:
come together and form one mass or whole
Synonyms:
merge, unite, join together, combine, fuse
Antonyms:
divide, separate, disconnect
The students coalesced to work on the project.
In John Lennon's song "Imagine" he sings about wanting everyone in the world to put aside their differences and coalesce.
John Lennon - Imagine - Lyrics