teacher; instructor; master; doctor
彼は恩師である山田_______から受けた熱心な指導と数々のアドバイスを、今でも深く感謝しています。
He deeply appreciates even now the enthusiastic instruction and numerous advices received from his mentor, Teacher Yamada.
(one's own) husband, master, owner, host
私の主人は料理が得意です。
My husband is good at cooking.
make full use of, utilize to the utmost, master
彼は語学力を駆使して、海外でのビジネスを成功させた。
He made full use of his language skills to succeed in business overseas.