noun
Refers to an official aide or assistant, often in a governmental, political, or organizational context. The term implies a formal supporting role.
首相補佐官が記者会見で説明した。
The prime minister's aide explained at the press conference.
彼は大臣補佐官として政策立案に関わっ
He is involved in policy planning as a ministerial aide.
助手 is a general assistant, often in academic or technical contexts, whereas 補佐官 is specifically an official aide in government or organizations.
Compound of 補佐 (ほさ, 'assistance, aid') and 官 (かん, 'official, government position'). The term is a modern bureaucratic title.