であろうじ字FuriganaAudioMeanings1expressionwill; probably; I think; it seemsFormal or written volitional/presumptive form of である (to be). Expresses the speaker's conjecture, intention, or hope about a state or event. Often used in formal speech, writing, and set phrases.明日あしたは雨あめであろう。Break this sentence down in the analyzerIt will probably rain tomorrow.彼かれの言いうことは本ほん当とうであろう。Break this sentence down in the analyzerWhat he says is probably true.