additivity
noun
additivity is spelled A-D-D-I-T-I-V-I-T-Y: 10 letters. It appears about once in every 21 million words in written English, the 139,999th most frequent word form (wordfreq, 2021 data). As a noun, additivity means “The property of being additive” (English Wiktionary, September 2026). The plural of additivity is additivities.
How many letters and syllables are in additivity?
| Letters | 10: A-D-D-I-T-I-V-I-T-Y |
|---|---|
| In writing | about once in every 21 million words; the 139,999th most frequent word form |
| Wrong spellings searched | none measured in search |
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).
How common is additivity?
Additivity appears about once in every 21 million words in written English, the 139,999th 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).
Forms of additivity
- additivities plural
- sigma additivity
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does additivity mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The property of being additive.
- 2
The extent to which something is additive.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Additivity in Spanish, French, German and Portuguese
| Language | Words |
|---|---|
| French | additivité |
| German | Additivität , σ-Additivität |
| Portuguese | aditividade |
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 additivity come from?
From additive + -ity.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).