additional
adj. · n.-
1 extra or supplemental (adj.) B1 Intermediateextra or added to what is already there.
supplemental to an existing amount, number, or set. Usually functions as an attributive adjective before the noun.
ExampleThe hotel charged an additional fee for using the gym facilities.
ExampleThe researchers requested additional funding to extend the study for another six months, citing the need for a larger sample size.
UsageCommonly used in formal and professional contexts to describe costs, information, or requirements.
PitfallI need an additional of time.I need additional time.When used as an adjective, 'additional' must describe a noun directly. Do not use it with 'of' like a noun phrase.
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2 something added (n.) C1 Advanced Formala person or thing that is added to a group.
an entity or item that is added to an existing collection or group.
ExampleThe new team member is a great additional to our office.
ExampleThe archive received several rare manuscripts as additionals to the permanent collection this year.
Teacher's tipIn modern English, the noun form is rare; 'addition' is almost always preferred by native speakers.
From addition + -al.
- Nounaddition
- Adjectiveadditional