Multi-year or multiyear?
multi-year is an adjective meaning “Alternative form of multiyear”; multiyear is an adjective meaning “Having a duration of multiple years”. multi-year is written with a hyphen and multiyear as one word; they are used differently.
What is the difference between multi-year and multiyear?
| multi-year | multiyear | |
|---|---|---|
| Part of speech | adjective | adjective |
| Meaning | Alternative form of multiyear | Having a duration of multiple years |
| Example | none recorded | none recorded |
| Pronunciation | not recorded | not recorded |
| In writing | not counted (the list counts single words) | about once in every 4 million words |
Sources: multi-year and multiyear in the English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0); written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Every current meaning of multi-year and multiyear
multi-year
- 1
Alternative form of multiyear
multiyear
- 1
Having a duration of multiple years
Source: the English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0); obsolete, archaic, dialect and rare senses left out.
Which is more common, multi-year or multiyear?
multi-year is a phrase, which the list of single words does not count; multiyear about once in every 4 million words.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How many people search multi-year vs multiyear?
“multi-year vs multiyear” is searched about 10 times a month on Bing (Google reports it together with close variants, so it has no figure of its own) in the United States.
Sources: Google Ads keyword data through DataForSEO and Microsoft Advertising keyword data through DataForSEO, the average month from September 2025 to August 2026.