# additional

/əˈdɪʃənəɫ/ (US) · /ɐdˈɪʃənəl/ (UK)

Source: https://englishreference.com/word/additional
Updated: 2026-06-19

## Senses

### 1. extra or supplemental

adjective · CEFR B1

extra or added to what is already there.

For teachers: supplemental to an existing amount, number, or set. Usually functions as an attributive adjective before the noun.

- The hotel charged an additional fee for using the gym facilities.
- The researchers requested additional funding to extend the study for another six months, citing the need for a larger sample size.

Usage: Commonly used in formal and professional contexts to describe costs, information, or requirements.

### 2. something added

noun · CEFR C1 · Formal

a person or thing that is added to a group.

For teachers: an entity or item that is added to an existing collection or group.

- The new team member is a great additional to our office.
- The archive received several rare manuscripts as additionals to the permanent collection this year.

Teaching tip: In modern English, the noun form is rare; 'addition' is almost always preferred by native speakers.

## Examples

- We need additional information before we can decide.
- The project will require additional funding to cover the cost of new equipment.
- While the initial report was thorough, the committee requested additional evidence to ensure that the final recommendations were based on the most current data available.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.