This is the 3752nd most frequent Polish word.
masters
The Polish word "masters" is not a Polish word; it is English. If you mean "mistrzowie" (Polish for "masters"), it refers to experts or champions.
Here, 'mistrzów' implies plural of 'mistrz', meaning experts or highly skilled individuals in their field.
Młodzi artyści przygotowują się do konkursu pod okiem mistrzów.
Young artists are preparing for the competition under the guidance of masters.
Here, 'magisterskie' refers to a level of academic degree called a master's degree.
Jan ukończył studia magisterskie w zeszłym roku.
Jan completed his master's studies last year.
In this sentence, 'masters' is used as a verb meaning the act of achieving proficiency in various skills.