/bɪˈkʌm/verb(past tensebecame, past participlebecome)
Definition
become available/rich/a writer, etc›to begin to be something: They became great friends.She wants to become a teacher when she leaves school.This style of skirt is becoming fashionable.
what/whatever became of sb/sth›something you say when you want to know what has happened to someone: Whatever became of your friend Harry?