additionality
noun
additionality is spelled A-D-D-I-T-I-O-N-A-L-I-T-Y: 13 letters. It appears about once in every 63 million words in written English, the 249,463rd most frequent word form (wordfreq, 2021 data). As a noun, additionality means “The property of being additional” (English Wiktionary, September 2026). The plural of additionality is additionalities.
How many letters and syllables are in additionality?
| Letters | 13: A-D-D-I-T-I-O-N-A-L-I-T-Y |
|---|---|
| In writing | about once in every 63 million words; the 249,463rd 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 additionality?
Additionality appears about once in every 63 million words in written English, the 249,463rd 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 additionality
- additionalities plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does additionality mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The property of being additional.
- 2
Net positive difference that results from economic development intervention. The extent to which an activity (and associated outputs, outcomes and impacts) is larger in scale, at a higher quality, takes place quicker, takes place at a different location, or takes place at all as a result of intervention. Additionality measures the net result, taking account of deadweight, leakage, displacement, su
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Additionality in Spanish, French, German and Portuguese
In the sense the property of being additional:
| Language | Words |
|---|---|
| French | additionalité |
| Portuguese | adicionalidade |
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 additionality come from?
From additional + -ity.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).