１Ｄａｙわんでー

noun which may take the genitive case particle 'no', noun

one-day

Describes something lasting or valid for a single day, such as a ticket, pass, or event.

• １Ｄａｙパスを買かって、一いち日にち中じゅうバスに乗のり放ほう題だいだった。

  I bought a one-day pass and could ride the bus all day.

noun which may take the genitive case particle 'no', noun

single-use; daily-disposable

Commonly used for contact lenses and similar products that are used once and discarded.

• 最さい近きん、１Ｄａｙのコンタクトレンズに変かえた。

  I recently switched to daily-disposable contact lenses.