To isolate means to contain or withhold within a certain boundary. Nothing goes in, nothing goes out. Whatever is being isolated is protected from most means of harm - Yes, I said "most", because isolation doesn't always have its benefits. Believe me, I know.
We'll isolate this hot liquid in the thermos, it won't spill and it won't lose heat!
frozen with words in UR mouth
Isacc is isolated solid and stoned