1.Definition: a combatant who is able to defeat rivals

Related Noun(s):superior, victor

Category: People

2.Definition: a person who has general authority over others

Related Noun(s):lord, overlord

Category: People

3.Definition: an artist of consummate skill

"A master of the violin", "One of the old masters"

Related Noun(s):maestro

Category: People

4.Definition: an authority qualified to teach apprentices

Related Noun(s):professional

Category: People

5.Definition: an officer who is licensed to command a merchant ship

Related Noun(s):captain, sea captain, skipper

Category: People

6.Definition: an original creation (i.e., an audio recording) from which copies can be made

Related Noun(s):original

Category: Objects

7.Definition: directs the work of others

Category: People

8.Definition: key that secures entrance everywhere

Related Noun(s):passkey

Category: Objects

9.Definition: presiding officer of a school

Related Noun(s):headmaster, schoolmaster

Category: People

10.Definition: someone who holds a master's degree from academic institution

Category: People