We found 23 dictionaries that define the word tis:

General (14 matching dictionaries)

1. tis: Longman Dictionary of Contemporary English
2. 'tis, tis: Merriam-Webster
3. 'tis: Collins English Dictionary
4. tis: Vocabulary.com
5. TI's, TIs, T'is, Ti's, Tis, t'is, ti's, tis, tis, tis: Wordnik
6. 'tis: Cambridge Advanced Learner's Dictionary
7. TIS, TIs, 'tis, t'is, tis: Wiktionary
8. 'tis: Webster's New World College Dictionary, 4th Ed.
9. 'tis: The Wordsmyth English Dictionary-Thesaurus
10. 'tis, -tis, tis: Dictionary.com
11. TIS, 'Tis, Tis: Wikipedia, the Free Encyclopedia
12. tis: Webster's 1828 Dictionary
13. TIS: Stammtisch Beau Fleuve Acronyms
14. tis: TheFreeDictionary.com

Computing (1 matching dictionary)

15. tis: Encyclopedia

Medicine (1 matching dictionary)

16. tis: Medical dictionary

Miscellaneous (4 matching dictionaries)

17. TIS: Acronym Finder
18. TIS: Three Letter Words with definitions
19. AbbreviationZ (No longer online)
20. tis: Idioms

Science (1 matching dictionary)

21. TIS: Cytokines & Cells Online Pathfinder Encyclopaedia

Slang (1 matching dictionary)

22. T.I.S, t'is, tis: Urban Dictionary

Tech (1 matching dictionary)

23. DOD Dictionary of Military Terms: Joint Acronyms and Abbreviations (No longer online)

Definitions from Wiktionary (TIS) ▸ noun:  Initialism of truth in sentencing. ▸ noun:  Acronym of traffic information system. Similar: SI, te, titanium, atomic number 22, cordyline terminalis, twas, thee, ere, doth, mak, more... Opposite: isn't, isn't, isn't, isn't, isn't Types: tis of the season, tis of the night, tis of the hour, tis of the day, tis of the week, more... Phrases: Tis Time for Torture, Princess, Tis Hazari, tis all, more... Adjectives: feast, soft, connective, eye, easy, sure, tye, true, lye, yah, rye Colors:     crimson,     emerald,     gold,     silver,     ruby, more... ▸ Words similar to tis ▸ Usage examples for tis ▸ Idioms related to tis ▸ Wikipedia articles (New!) ▸ Popular adjectives describing tis ▸ Words that often appear near tis ▸ Rhymes of tis ▸ Invented words related to tis