What does "suburbanization" mean?

The process of suburbanizing, of population movement from cities to suburbs

What is a synonym for "suburbanization"?

Common synonyms include: outward expansion, suburban expansion, suburban growth.

noun

noun ·6 syllables ·Rare ·Advanced level

Noun

1
The process of suburbanizing, of population movement from cities to suburbs countable, uncountable
"“New York was a leader in postwar suburbanization and is now leading the trend toward suburban aging,” Dr. Frey said."

"“New York was a leader in postwar suburbanization and is now leading the trend toward suburban aging,” Dr. Frey said."

From suburbanize + -ation.