#1
master n. [
maestro] an artist of consummate skill; "a master of the violin"; "one of the old masters"
. wn #2
master n. [
overlord, lord] a person who has general authority over others
. wn #3
master v. [
get the hang] be or become completely proficient or skilled in; "She mastered Japanese in less than two years"
. wn #4
master v. [
overcome, get over, subdue, surmount] get on top of; deal with successfully; "He overcame his shyness"
. wn #5
master v. [
dominate] have dominance or the power to defeat over; "Her pain completely mastered her"; "The methods can master the problems"
. wn