Twelvemonth
//ˈtwɛlvmʌnθ// noun
noun ·Uncommon ·Advanced level
Definitions
Noun
- 1 A year. dated
"But last February, almost a twelvemonth back, she suddenly disappeared."
- 2 a period of time containing 365 (or 366) days wordnet
Example
More examples"But last February, almost a twelvemonth back, she suddenly disappeared."
Etymology
From Middle English twelmonth, twelfmonthe, twelfmonþe, from Old English twelfmōnþ, twelfmōnaþ, equivalent to twelve + month.
Related phrases
More for "twelvemonth"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.