Additional
Adjective
UK
/əˈdɪʃənl/
US
/əˈdɪʃənl/
Definition
More than what already exists; extra.
Example
"We need additional chairs."
"You’ll have to pay an additional fee for extra luggage."
"The waiter brought additional napkins for the messy meal."
Explanation
Additional means “more” or “extra.” You use this word when you already have something, but you need or get more of it. For example, if you need more help, you ask for additional help. If your room needs more light, you get an additional lamp. It is used to describe things that are added to what is already there.