- master [mas′tər, mäs′tər]n.[ME maistre < OE mægester, magister & OFr maistre, both < L magister, a master, chief, leader, orig., double compar. < base of L magnus, great < IE * meg̑(h)- > MUCH]1. a man who rules others or has control, authority, or power over something; specif.,a) a man who is head of a household or institutionb) an employerc) one who owns a slave or an animald) the captain of a merchant shipe) the one that excels in a contest, skill, etc.; victor or superiorf) Chiefly Brit. a male schoolteacher or tutorg) a person whose teachings in religion, philosophy, etc. one follows or professes to followh) [M-] Jesus Christ: with our, the, etc.2. something regarded as having control, power, etc.3. a person very skilled and able in some work, profession, science, etc.; expert; specif.,a) a highly skilled workman or craftsman qualified to follow his or her trade independently and, usually, to supervise the work of othersb) an artist regarded as greatc) Games Sports a person recognized as having achieved the highest degree of skill [chess master, golf master]4. [M-] a title variously applied toa) Archaic any man or youth: now superseded by the variant Mister, usually written Mr. when placed before the nameb) a boy regarded as too young to be addressed as Mr.c) a man who heads some institution, group, activity, or placed) in Scotland, the heir apparent of a viscount or baron5.a) a metal matrix or mold made from the original recording and used to produce phonograph records in quantityb) a completed tape recording used to produce discs, cassettes, etc. for sale6. Law any of several court officers appointed to assist the judge by hearing evidence, reporting on certain matters, etc.adj.1. being a master2. of a master3. chief; main; controlling; specif., designating a mechanism or contrivance that controls others or sets a standard or norm [a master switch, a master test sheet]vt.1. to become master of; control, conquer, etc.2. Now Rare to rule or govern as master3. to become an expert in (an art, science, etc.)4. to make a MASTER (sense 5) of
English World dictionary. V. Neufeldt. 2014.