IPA: //ˈprɒsɪkjuːtəbl//
KK: /prɑːsɪˈkjuːtəbl/
Able to be taken to court for a crime or legal offense.
The evidence was strong enough to make the case prosecutable.
Prosecutable → It is formed from "prosecute" (from Latin "prosecutus", meaning to follow up or pursue) and "-able" (meaning capable of). The word "prosecutable" means capable of being pursued or followed up in a legal context.
Think of the word 'prosecute' which means to follow up on a legal case, and remember that 'prosecutable' refers to something that can be pursued legally.