adverb
certainly; surely; undoubtedly
Expresses strong conviction or certainty about a statement. Often used to emphasize that something is indeed the case.
彼はまさしく天才だ。
He is undoubtedly a genius.
This is exactly the book I was looking for.
adverb
Used to pinpoint identity or timing, emphasizing that something matches perfectly or occurs at that very moment.
まさしくその通りです。
That's exactly right.
まさしく今、電話が鳴った。
Just now, the phone rang.