affine
/əˈfaɪn/adjective, noun, verb
affine is spelled A-F-F-I-N-E: 6 letters and 2 syllables. It appears about once in every 4 million words in written English, the 57,423rd most frequent word form (wordfreq, 2021 data). As an adjective, affine means “Assigning finite values to finite quantities” (English Wiktionary, September 2026).
How many letters and syllables are in affine?
| Letters | 6: A-F-F-I-N-E |
|---|---|
| Syllables | 2 (from its American pronunciation) |
| In writing | about once in every 4 million words; the 57,423rd most frequent word form |
| Wrong spellings searched | none measured in search |
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).
How common is affine?
Affine appears about once in every 4 million words in written English, the 57,423rd 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 affine?
- /əˈfaɪn/
Affine 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). Recordings: LL-Q1860_(eng)-Vealhurl-affine.wav, Wikimedia Commons (author and licence on each file's page).
Forms of affine
- more affine comparative
- most affine superlative
- affines plural, present, singular, he/she/it
- affining participle, present
- affined participle, past
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does affine mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Assigning finite values to finite quantities.
- 2
Of or pertaining to a function expressible as f(⃑x)=A⃑x+⃑b (where A is a linear transformation and ⃑b is a constant), which, regarded as a transformation, maps parallel lines to parallel lines and finite points to finite points.
- 3
Of two materials, having mutual affinity.
noun
- 1
A relative by marriage.
verb
- 1
To refine.
- 2
To set the CPU affinity of something
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Affine in Spanish, French, German and Portuguese
In the sense pertaining to a kind of function that generalises a linear transformation:
| Language | Words |
|---|---|
| Portuguese | afim |
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 affine come from?
Borrowed from Latin affinis, from ad + fīnis (“boundary”).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).