Charles Ellicott Commentary Esther 9:19

"Therefore do the Jews of the villages, that dwell in the unwalled towns, make the fourteenth day of the month Adar [a day of] gladness and feasting, and a good day, and of sending portions one to another." — Esther 9:19 (ASV)

The Jews of the villages ... the unwalled towns. —Virtually the same Hebrew word is used in both these cases (perazim, perazoth). The meaning is that of country towns, undefended by bulwarks, or, at any rate, not in the sense in which the capital would be. We find the word used in contrast with fenced cities in Deuteronomy 3:5.