Found 2 items, similar to twelvemonth.
English → English (WordNet) Definition: twelvemonth twelvemonth n : a period of time containing 365 (or 366) days; “she is 4 years old”; “in the year 1920” [syn: year, yr]
English → English (gcide) Definition: Twelvemonth Twelvemonth \Twelve"month\, n. A year which consists of twelve calendar months. [1913 Webster] I shall laugh at this a twelvemonth hence. --Shak. [1913 Webster]