# Smithsonian

/smɪˈsoʊniən/ (US)

Source: https://englishreference.com/word/smithsonian
Updated: 2026-08-15

## Senses

### 1. the institution

noun · CEFR B2 · American English

a large group of museums and research centres in the U.S., often called 'the Smithsonian'.

For teachers: The Smithsonian Institution, a complex of museums and research facilities established by the U.S. government in 1846.

- We spent the whole day at the Smithsonian looking at old aeroplanes and space rockets.
- The Smithsonian remains the world's largest museum and research complex, housing millions of artefacts across its various galleries in Washington, D.C.

Usage: Usually used with the definite article 'the' when referring to the institution.

### 2. related to the institution or founder

adjective · CEFR C1 · Formal

related to the Smithsonian Institution or its founder, James Smithson.

For teachers: Of or pertaining to the Smithsonian Institution or to James Smithson, the British scientist whose bequest founded it.

- The Smithsonian collection includes many rare items from American history.
- The curator discussed the Smithsonian mission to increase and diffuse knowledge through public exhibitions and scientific research.

Usage: Typically used as an attributive adjective before a noun.

## Examples

- We spent the whole day exploring the Smithsonian.
- The Smithsonian houses millions of artifacts, including the original Wright brothers' airplane and the Hope Diamond.
- Scholars from around the world collaborate with the Smithsonian to preserve cultural heritage and advance scientific understanding through its vast archival collections.

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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.