Definitions

1. verb

to unite or combine two or more distinct communities or populations into a single community, especially by the establishment of a single government or authority

“The new city charter aimed to synoecize the surrounding villages into a single administrative entity.”

2. noun

the act of uniting or combining two or more distinct communities or populations into a single community, especially by the establishment of a single government or authority

“The synoecization of the region was a gradual process that took centuries to complete.”