once-off
adjective, noun
once-off is spelled O-N-C-E-O-F-F: 7 letters. As an adjective, once-off means “Alternative form of one-off” (English Wiktionary, September 2026).
How many letters and syllables are in once-off?
| Letters | 7: O-N-C-E-O-F-F |
|---|---|
| In writing | a phrase: the frequency list counts single words |
| Wrong spellings searched | none measured in search |
| Pairs people 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); Bing searches in the United States: the average month from September 2025 to August 2026 (Microsoft Advertising keyword data through DataForSEO, read September 30, 2026).
Words people confuse with once-off
Word pairs people search, with the monthly searches for “a vs b” (G: Google, B: Bing, United States).
Also written: one-off.
Sources: Google and Bing searches (September 2025 to August 2026, through DataForSEO); English Wiktionary (homophones, alternative spellings).
Forms of once-off
- more once-off comparative
- most once-off superlative
- once-offs plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does once-off mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Alternative form of one-off.
a once-off payment.
noun
- 1
Alternative form of one-off.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).