We have no meanings for "become unknown" in our records yet.
1 Food and fuel were items of so small consequence, that poverty had become unknown .
2 Rivalry, competition, and controversies over points of dogma have become unknown on Plutoria Avenue.
3 But I know well that this work is lightly esteemed, and has indeed become unknown .
4 He may become unknown or be ignored if known.
5 Hals divided it into four pieces and we tasted a substance which had become unknown to us.
6 They could not afford to drink wine any longer in a land where indigestion had become unknown .
7 Flour was hundreds of dollars a barrel; bacon ten dollars a pound; coffee and tea had become unknown almost.
8 I tell you, such practice was unknown in the ancient earnest times; and ought again to become unknown except to the more foolish classes!
9 Shakespeare and Homer may live long, but they will die some day, that is to say, they will become unknown as direct and efficient causes.
10 "And death become unknown on Mars!"
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