prior knowledge

listen to the pronunciation of prior knowledge
الإنجليزية - التركية
on bilgi
الإنجليزية - الإنجليزية
the knowledge that stems from previous experience

I had no prior knowledge of linguistics, but that didn't stop me writing a dictionary.

knowledge of a set of circumstances sufficient to make actions based on those circumstances wrongful

The defendant was convicted because the prosecutor proved the defendant's prior knowledge of the victim's particular vulnerability.

preknowledge