A person who gives advice or counsel to others; someone who provides guidance based on expertise or experience.
新しい事業には経験豊富な助言者が必要だ。
A new venture needs an experienced adviser.
彼は会社の助言者として戦略について助言した。
He advised the company on strategy as an adviser.
政治家にはしばしば信頼できる助言者がそばにいる。
Politicians often have trustworthy advisers by their side.