This is the 247th most frequent Japanese word.
本当に
"Truly; really; genuinely."
In this sentence, '本当に' is used as an adverb to show emphasis on 'beautiful.' It underscores the intensity of the speaker's sentiment towards the scenery's beauty.
本当に美しい景色ですね。
This is truly a beautiful scenery.
In this usage, '本当に' serves to intensify the speaker's expression of apology, showing deep sincerity.
本当に申し訳ありませんでした。
I am truly sorry.
Here, the word '本当' refers to the truth or authenticity of something. When combined with 'ni' as '本当に,' it emphasizes the realization of truth.