Usage patterns
〈人〉に弟子入りするto become someone's disciple/apprentice
He became the apprentice of a famous master.
師匠から〈事〉を学ぶto learn something from one's master
I learned the art of rakugo from my master.
師匠と呼ぶto address someone as 'master'
The disciples called him 'master'.
師匠を持つto have a master (as one's teacher)
She has a master who teaches her the tea ceremony.