オプション

おぷしょん
noun
option, optional extra
1. option, optional feature, add-on
An additional item, service, or feature that can be chosen beyond the standard offering. Often used for optional extras when purchasing products or services.
オプションを追加(ついか)する。
To add an option.
ナビはオプションで()けられます。
Navigation can be added as an option.
ホテルの朝食(ちょうしょく)はオプションなので、別料金(べつりょうきん)がかかる。
The hotel breakfast is optional, so there is an extra charge.

From English "option." In Japanese, オプション specifically emphasizes the idea of an optional add-on or upgrade, rather than the broader English meaning of "choice."

COMMON PATTERNS:

  • オプションを()ける: to add an option
  • オプションで(えら)べる: available as an option
  • オプション料金(りょうきん): option fee, extra charge

NOTE:
When talking about choices in general, the Japanese word 選択肢(せんたくし) is more appropriate than オプション. オプション specifically implies an optional extra on top of a base product or service.