プログレッシブ和英中辞典(第4版)の解説
たぶん【多分】
❶〔おそらく〕probably; perhaps; possibly; maybe（▼probablyが一番可能性が大きい．possibly, perhaps, maybeは可能性がそれより低い．maybeは口語的でperhapsは上品な感じ）
「あした雨だろうか」「たぶんね」
“Will it rain tomorrow?”“Probably [I'm afraid so].”
たぶん合格するだろう
He will probably pass the examination.
たぶん日にちを忘れたんでしょう
Maybe [Perhaps] he has forgotten the date.
たぶんお役に立てると思います
I hope I can be of some help to you.
たぶんそのためにためらっているのだろう
「That is possibly [That may be] the reason for his hesitation.
そんなことはたぶん起こらないだろう
That is 「not likely [unlikely] to happen.
❷〔たくさん〕
多分の寄付
generous donations
その水には塩分が多分に含まれていた
The water contained a large quantity of salt.
戦争が起こりそうな恐れが多分にある
There is a very strong possibility that war will break out.
彼の成功は多分に先生のお陰である
His success is due in large part to his teacher.