All terms in this list:

coexist: To exist at the same time or in the same place.

coherent: Sticking together; connected, related in some way.

collaborate: To labor together.

collide: To come together with great force; to clash.

composite: Made of separate parts or elements.

compound: Bring together; (n) a mixture

concordance: An agreement or harmony

congregate: To gather together.

symmetry: Elements on both sides of a line that have the same shape, size and arrangement.

synthesize: To form a new thing by combining parts from other things; to unite or merge.