master - noun

an artist of consummate skill

a person who has general authority over others

a combatant who is able to defeat rivals

directs the work of others

presiding officer of a school

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

an officer who is licensed to command a merchant ship

someone who holds a master's degree from academic institution

an authority qualified to teach apprentices

key that secures entrance everywhere

master - verb

• be or become completely proficient or skilled in
• get on top of; deal with successfully
• have dominance or the power to defeat over
• have a firm understanding or knowledge of; be on top of

master - adjective

• most important element

master - thesaurus

captain   chief   control   dominate   headmaster   lord   maestro   main   original   overcome   overlord   passkey   primary   principal   professional   schoolmaster   skipper   subdue   superior   surmount   victor