work very hard, like a slave
someone who works as hard as a slave
a person who is owned by someone
someone entirely dominated by some influence or person
a combatant who is able to defeat rivals
get on top of; deal with successfully
an authority qualified to teach apprentices
key that secures entrance everywhere
be or become completely proficient or skilled in
an original creation (i.e., an audio recording) from which copies can be made
presiding officer of a school
have dominance or the power to defeat over
a person who has general authority over others
an officer who is licensed to command a merchant ship
an artist of consummate skill
have a firm understanding or knowledge of; be on top of
most important element
directs the work of others
someone who holds a master's degree from academic institution
