yearlong
adjective, adverb
yearlong is an adjective meaning “Lasting one year; of a timespan of one year” (English Wiktionary, September 2026). It is spelled Y-E-A-R-L-O-N-G and has 2 syllables, and it appears about once in every 4 million words in written English (wordfreq, 2021 data).
What does yearlong mean?
adjective
- 1
Lasting one year; of a timespan of one year.
- 2
Which lasts throughout every year; which is not seasonal
Yearlong manning is needed, although at a somewhat reduced level from the peak periods in the fall.
adverb
- 1
Per year.
- 2
Throughout every year; not seasonally
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How do you pronounce yearlong?
- US
Yearlong 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)-Flame,_not_lame-yearlong.wav, Wikimedia Commons (author and licence on each file's page).
Forms of yearlong
- year-long
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is yearlong?
Yearlong appears about once in every 4 million words in written English, the 60,838th 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).
Words people confuse with yearlong
Word pairs people search, with the monthly searches for “a vs b” (G: Google, B: Bing, United States).
Also written: year-long (one word or two).
Sources: Google and Bing searches (September 2025 to August 2026, through DataForSEO); English Wiktionary (homophones, alternative spellings).
Yearlong in Spanish, French, German and Portuguese
In the sense lasting one year, or approximately so; of or relating to a timespan of one year:
| Language | Words |
|---|---|
| German | einjährig |
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 yearlong come from?
From year + -long.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).