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Definition of twelvemonth

twelvemonth

/ˈtwɛlv.mʌnθ/
twelve · month
Plural:twelvemonths
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twelvemonth Lexical Profile

twelvemonth Game Scores & Validity

• noun

1

A period of twelve consecutive months; a year (now chiefly archaic or literary).

Example

"The apprentice signed an indenture binding him to serve the master craftsman for a full twelvemonth."

Synonyms
View all synonyms for twelvemonth

Word Nuance & Usage

Primarily an archaic or literary term, it often appears in older legal or historical expressions such as "a year and a day" or "this day twelvemonth" (meaning a year from today).

• Nearby Words

twelfth
twelve
twelvefold
twelvemonth
twenties
twentieth
twenty

Word Origin & Etymology

From Middle English twelfmonth, going back to the Old English phrase twelf monath, literally meaning "twelve months."

Cite this Entry

Wordmom. (2026). Definition of Twelvemonth. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/twelvemonth
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