To suit or be suitable to; to be congruous with; to befit; to accord with, in character or circumstances; to be worthy of, or proper for; to cause to appear well; said of persons and things
undergo a change or development; "The water turned into ice"; "Her former friend became her worst enemy"; "He turned traitor"
If you wonder what has become of someone or something, you wonder where they are and what has happened to them. She thought constantly about her family; she might never know what had become of them
To pass from one state to another; to enter into some state or condition, by a change from another state, or by assuming or receiving new properties or qualities, additional matter, or a new character