migration

(a)  

emigration

(a)  

immigration

(a)  

foreigner

(a)  

public worker

(a)  

momentum

(a)  

crowded

(a)  

packed with

(a)  

to fit in

(a)  

to approve

(a)  

to assimilate

(a)  

to embark

(a)  

therefore

(a)  

neighborhood

(a)  

era, age, period

(a)  

pattern of behavior

(a)  

to settle in

(a)  

homeland

(a)  

chase, pursuit

(a)  

to run away

(a)  

open sea

(a)