noun, noun or participle which takes 'suru', transitive verb
assistance; aid; assistant; advisor
Often used in formal or organizational contexts for a person who assists a superior, or the act of providing such support. Common in job titles like 課長補佐 (assistant section chief).
彼は社長を補佐する役割を担っている。
He is responsible for assisting the company president.
The new assistant will start next week.