What it means
あるいは presents an alternative between two or more possibilities, and is similar to “or” or “alternatively.” It is especially common in formal writing, announcements, academic explanations, and careful speech. It can connect noun phrases or larger clauses, often presenting the second option as another possible course of action or outcome.
Usage note
あるいは is more formal than とか and is often interchangeable with または when listing alternatives. In some contexts, it can also mean “possibly” or “perhaps,” so the intended meaning depends on whether it introduces an alternative or expresses uncertainty.
How to use it
提出方法は郵送、あるいは窓口での提出です。
The submission method is mailing or submitting at the service counter.
会議は午後に延期されます、あるいは予定どおりに実施されます。
The meeting will be postponed until the afternoon or be held as scheduled.
提出方法は郵送、あるいは窓口での提出だ。
The submission method is mailing or submitting at the service counter.
会議は午後に延期される、あるいは予定どおりに実施される。
The meeting will be postponed until the afternoon or be held as scheduled.
Example sentences
参加者は会場で直接申し込む、あるいは専用フォームから登録することができます。
Participants can apply directly at the venue or register through the designated form.
申請書はオンラインで提出する、あるいは郵送することができます。
You can submit the application form online, or alternatively send it by mail.
昼食には魚料理、あるいは野菜中心の定食を選べます。