Master

ぼっちゃま

botchama

(courtesy title for a boy)

マスター

masutā

(engineering: device that is controlling other devices or is an authoritative source)

主

(someone who employs others)

主人

shujin

(someone who has control over something or someone)

主人

shujin

(someone who employs others)

修士

shūshi

(master's degree)

修士

shūshi

(person holding a master's degree)

修士号

(master's degree)

修士学位

(master's degree)

匠

takumi

(expert at something)

匠

takumi

(skilled artist)

原本

genpon

(original of a document or of a recording)

坊っちゃん

botchan

(courtesy title for a boy)

船長

senchō

(captain of a merchant ship)

達人

tatsujin

(expert at something)

達人

tatsujin

(skilled artist)

雇用主

koyōnushi

(someone who employs others)

飼い主

kainushi

(owner of an animal or slave)

マスターする

masutā suru

(to learn to a high degree)

熟達する

jukutatsu suru

(to learn to a high degree)