プログレッシブ和英中辞典(第4版)の解説
ほんしょく【本職】
❶〔本務〕one's regular [principal, main] occupation [profession]
私の本職は歯医者です
I am a dentist by profession.
❷〔専門家〕a professional
本職の professional
君の絵は本職のようだ
Your paintings look really professional.
本職はだし
彼の歌は本職はだしだ
He sings like a professional.／He sings so well that he puts professionals to shame.