dewar
/ˈduː.ɚ/noun
dewar is spelled D-E-W-A-R: 5 letters and 2 syllables. It appears about once in every 2 million words in written English, the 41,154th most frequent word form (wordfreq, 2021 data). As a noun, dewar means “A vacuum flask; a vessel which keeps its contents hotter or cooler than their environment without the need to modify the pressure, by interposing an…” (English Wiktionary, September 2026). The plural of dewar is dewars.
How many letters and syllables are in dewar?
| Letters | 5: D-E-W-A-R |
|---|---|
| Syllables | 2 (from its American pronunciation) |
| In writing | about once in every 2 million words; the 41,154th most frequent word form |
| Wrong spellings searched | none measured in search |
| Rhymes with | |
| Same letters |
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 dewar?
Dewar appears about once in every 2 million words in written English, the 41,154th 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 dewar?
- UK /ˈdjuː.ə/
- US /ˈduː.ɚ/
Dewar has 2 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 dewar?
9 words on PlainSpell end in the same sounds as dewar from its last stressed vowel (/uəɹ/):
Spelled with the same letters in another order: wader.
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 dewar
- dewars plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does dewar mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A vacuum flask; a vessel which keeps its contents hotter or cooler than their environment without the need to modify the pressure, by interposing an evacuated region to provide thermal insulation between the contents and the environment.
noun
- 1
A glass or metal double-walled flask for holding a liquid without much loss or gain of heat; a vacuum bottle or thermos. Generally used for scientific purposes and in particular for cryogenic work.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does dewar come from?
Named after British physicist and chemist James Dewar, its inventor.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).