Definitions for "Muhajir"
migrants, one who migrates for the sake of Allah. The original Muhajirin were the Muslims who migrated from Makkah to Yathrib (Madinah).
An “immigrant” - one of the Companions who fled Makkah for Madinah to escape persecution.
Muhajir or Mohajir (Arabic: مهاجر) is an Arabic word meaning refugee or immigrant or emigrant. The Islamic calendar Hejira starts when Muhammad and his companions left Mecca for Madina. They were called Muhajirun.