We found 16 dictionaries that define the word new year's:

General (14 matching dictionaries)

1. New Year's, new years: Merriam-Webster
2. New Year's: Oxford Learner's Dictionaries
3. New Year's, New Year's: Collins English Dictionary
4. New Year's: Vocabulary.com
5. New-Year's, New-year's, new-year's, new-years: Wordnik
6. New Year's, New year's, New years, new years: Cambridge Advanced Learner's Dictionary
7. New Year's: Wiktionary
8. New Year's, New Years, New years: Wikipedia, the Free Encyclopedia
9. New year's: Rhymezone
10. new years: FreeDictionary.org
11. new year's: Mnemonic Dictionary
12. New Year's: TheFreeDictionary.com
13. new years: Dictionary.com
14. New Years: Wiktionary

Computing (1 matching dictionary)

15. New Year's: Encyclopedia

Slang (1 matching dictionary)

16. new years: Urban Dictionary

(Note: See new_year as well.)

Definitions from Wiktionary (New Year's) ▸ noun:  The holiday commemorating (the beginning of) the new year. Opposite: last year, old year, previous year Types: Gregorian, lunar, solar, Julian, Persian, Hebrew, Chinese, more... Phrases: new years day, new years eve, new years resolution, new years resolutions, new years popper, more... ▸ Words similar to new year's ▸ Usage examples for new year's ▸ Idioms related to new year's ▸ Wikipedia articles (New!) ▸ Words that often appear near new year's ▸ Rhymes of new year's ▸ Invented words related to new year's