Master

Definition (Noun)
At Level 40 Notoriety, a pirate becomes a Master pirate - meaning they are as notorious as possible.

If a pirate is a master with their cutlass, sailing or other skill, they have reached Level 25 of that skill or 'mastered' it.

Definition (Verb)
To reach 'master' level Pirate at level 40 notoriety or skill level 25.