Smithsonian
/smɪθˈsəʊni.ən/adjective
Smithsonian is spelled S-M-I-T-H-S-O-N-I-A-N: 11 letters and 4 syllables. It appears 2.5 times per million words in written English, the 17,122nd most frequent word form (wordfreq, 2021 data). As an adjective, Smithsonian means “Of or pertaining to James Smithson (c.1765–1829), British mineralogist and chemist whose bequest was used to set up the Smithsonian Institution in…” (English Wiktionary, September 2026).
How many letters and syllables are in Smithsonian?
| Letters | 11: S-M-I-T-H-S-O-N-I-A-N |
|---|---|
| Syllables | 4 (from its American pronunciation) |
| In writing | 2.5 times per million words; the 17,122nd most frequent word form |
| Wrong spellings searched | none measured in search |
| Rhymes with |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); rhymes and same-letter words are computed by PlainSpell from its own word list.
How common is Smithsonian?
Smithsonian appears 2.5 times per million words in written English, the 17,122nd most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce Smithsonian?
- UK /smɪθˈsəʊni.ən/
Smithsonian has 4 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What rhymes with Smithsonian?
One word on PlainSpell end in the same sounds as Smithsonian from its last stressed vowel (/əʊniən/, British pronunciation):
Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).
Forms of Smithsonian
- more Smithsonian comparative
- most Smithsonian superlative
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does Smithsonian mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Of or pertaining to James Smithson (c.1765–1829), British mineralogist and chemist whose bequest was used to set up the Smithsonian Institution in the United States.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Smithsonian in Spanish, French, German and Portuguese
In the sense of or pertaining to James Smithson:
| Language | Words |
|---|---|
| Spanish | smithsoniano |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does Smithsonian come from?
From Smithson + -ian.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).