extra
n. countable A1 Beginner Oxford US //ˈɛkstɹə// UK //ˈɛkstɹɐ// ex·tra Archaic General-service Informal Slang
n. something added to what is normal or expected. You use this when you get more of something than you usually do.
n. an item, amount, or person added to what is usual or strictly necessary. Often used in the plural to refer to additional features or costs.
The hotel room has several extras like free snacks.
When buying a new car, you often have to pay more for extras like heated seats or a better sound system.
The basic subscription covers the essential services, but users must pay for various extras if they require advanced data analytics or priority support.
Abbreviation of extraordinary.
Usage
Commonly used in the plural form 'extras' to refer to additional charges or features.