keep
v
guardar
know
v
1.
saber
n.b. 'Saber' means 'to know' as in 'to know a fact or how to do something'
2.
conèixer
He didn't know about...
-
Desconeixia...
n.b. 'Conèixer' means 'to know' as in 'to be acquainted with somebody or something'