invar
noun
invar is spelled I-N-V-A-R: 5 letters. It appears about once in every 52 million words in written English, the 225,584th most frequent word form (wordfreq, 2021 data). As a noun, invar means “An alloy of iron containing 35.5% nickel, and having a very low coefficient of expansion” (English Wiktionary, September 2026). The plural of invar is invars.
How many letters and syllables are in invar?
| Letters | 5: I-N-V-A-R |
|---|---|
| In writing | about once in every 52 million words; the 225,584th most frequent word form |
| Wrong spellings searched | none measured in search |
| Same letters |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; 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 invar?
Invar appears about once in every 52 million words in written English, the 225,584th 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).
What rhymes with invar?
No other word on PlainSpell ends in the same sounds as invar.
Spelled with the same letters in another order: ravin.
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 invar
- invars plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does invar mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
An alloy of iron containing 35.5% nickel, and having a very low coefficient of expansion.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does invar come from?
Shortening of invariable.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).