We found 18 dictionaries that define the word in advance:

General (14 matching dictionaries)

1. in advance: Merriam-Webster
2. in advance: Oxford Learner's Dictionaries
3. in advance: Collins English Dictionary
4. in advance: Vocabulary.com
5. in advance: Wordnik
6. in advance: Cambridge Advanced Learner's Dictionary
7. in advance: Wiktionary
8. In advance, in advance: Dictionary.com
9. in advance: Rhymezone
10. in advance: FreeDictionary.org
11. in advance: Mnemonic Dictionary
12. in advance: TheFreeDictionary.com

Business (2 matching dictionaries)

13. in advance: Merriam-Webster Legal Dictionary
14. in advance: Legal dictionary

Computing (1 matching dictionary)

15. in advance: Encyclopedia

Miscellaneous (1 matching dictionary)

16. in advance: Idioms

Definitions from WordNet (in advance) ▸ adverb:  ahead of time; in anticipation ("When you pay ahead (or in advance) you receive a discount") Opposite: retroactively, after fact, belatedly, post hoc Phrases: annuity in advance, cash in advance, in advance of, thanks in advance, pay in advance, more... ▸ Words similar to in advance ▸ Usage examples for in advance ▸ Idioms related to in advance ▸ Wikipedia articles (New!) ▸ Words that often appear near in advance ▸ Rhymes of in advance ▸ Invented words related to in advance