1.
addition, supplement, appendix
Adding something extra to what already exists. The act of supplementing or including additional items.
注文を追加してもいいですか。
Can I add to my order?
Common in restaurants
予算の追加が必要だ。
An additional budget is needed.
追加料金なしでサービス}を{受けられる。
You can receive the service without additional charges.
追加料金 = additional fee/charge
COMMON COLLOCATIONS:
- 追加する (to add)
- 追加注文 (additional order)
- 追加料金 (additional charge/fee)
- 追加予算 (supplementary budget)
- 追加機能 (additional feature)
- 追加情報 (additional information)
COMPUTER/TECH USAGE:
- ファイルを追加する (to add a file)
- 機能を追加する (to add a feature)
RELATED:
- 付け加える (to add, append - verb)
- 増やす (to increase - verb)