Noun1.
master - an artist of consummate skill; "a master of the violin"; "one of the old masters"
maestro
artist,
creative person - a person whose creative work shows sensitivity and imagination
old master - a great European painter prior to 19th century
2.master - a person who has general authority over others
overlord,
lord
feudal lord,
seigneur,
seignior - a man of rank in the ancient regime
ruler,
swayer - a person who rules or commands; "swayer of the universe"
3.master - a combatant who is able to defeat rivals
victor,
superior
battler,
belligerent,
combatant,
fighter,
scrapper - someone who fights (or is fighting)
conqueror,
vanquisher - someone who is victorious by force of arms
4.master - directs the work of others
employer - a person or firm that employs workers
postmaster - the person in charge of a post office
spymaster - someone who directs clandestine intelligence activities
station agent,
stationmaster - the person in charge of a railway station
5.master - presiding officer of a school
headmaster,
schoolmaster
housemaster - teacher in charge of a school boardinghouse
head teacher,
school principal,
principal,
head - the educator who has executive authority for a school; "she sent unruly pupils to see the principal"
6.master - an original creation (i.e., an audio recording) from which copies can be made
master copy,
original
creation - an artifact that has been brought into existence by someone
7.master - an officer who is licensed to command a merchant ship
sea captain,
skipper,
captain
ship's officer,
officer - a person authorized to serve in a position of authority on a vessel; "he is the officer in charge of the ship's engines"
8.master - someone who holds a master's degree from academic institution
bookman,
scholar,
scholarly person,
student - a learned person (especially in the humanities); someone who by long study has gained mastery in one or more disciplines
9.master - an authority qualified to teach apprentices
professional
authority - an expert whose views are taken as definitive; "he is an authority on corporate law"
past master - someone who was formerly a master
10.master - key that secures entrance everywhere
master key,
passe-partout,
passkey
key - metal device shaped in such a way that when it is inserted into the appropriate lock the lock's mechanism can be rotated
skeleton key - a passkey with much of the bit filed away so that it can open different locks
Verb1.master - be or become completely proficient or skilled in; "She mastered Japanese in less than two years"
get the hang
know - know how to do or perform something; "She knows how to knit"; "Does your husband know how to cook?"
2.master - get on top of; deal with successfully; "He overcame his shyness"
surmount,
overcome,
subdue,
get over
beat,
beat out,
vanquish,
trounce,
crush,
shell - come out better in a competition, race, or conflict; "Agassi beat Becker in the tennis championship"; "We beat the competition"; "Harvard defeated Yale in the last football game"
bulldog - throw a steer by seizing the horns and twisting the neck, as in a rodeo
3.master - have dominance or the power to defeat over; "Her pain completely mastered her"; "The methods can master the problems"
dominate
command - be in command of; "The general commanded a huge army"
control,
command - exercise authoritative control or power over; "control the budget"; "Command the military forces"
subjugate,
subject - make subservient; force to submit or subdue
4.master - have a firm understanding or knowledge of; be on top of; "Do you control these data?"
control
know - know how to do or perform something; "She knows how to knit"; "Does your husband know how to cook?"
cinch - get a grip on; get mastery of
control,
operate - handle and cause to function; "do not operate machinery after imbibing alcohol"; "control the lever"
Adj.1.master - most important element; "the chief aim of living"; "the main doors were of solid glass"; "the principal rivers of America"; "the principal example"; "policemen were primary targets"; "the master bedroom"; "a master switch"
chief,
main,
principal,
primary
important,
of import - of great significance or value; "important people"; "the important questions of the day"