We found 17 dictionaries that define the word at the same time:

General (14 matching dictionaries)

1. at the same time: Merriam-Webster
2. at the same time: Oxford Learner's Dictionaries
3. at the same time: Collins English Dictionary
4. at the same time: Vocabulary.com
5. at the same time: Cambridge Advanced Learner's Dictionary
6. at the same time: Wiktionary
7. at the same time: Dictionary.com
8. at the same time: Rhymezone
9. at the same time: FreeDictionary.org
10. at the same time: Mnemonic Dictionary
11. at the same time: TheFreeDictionary.com
12. at the same time: Longman Dictionary of Contemporary English

Business (1 matching dictionary)

13. at the same time: Legal dictionary

Medicine (1 matching dictionary)

14. at the same time: Merriam-Webster Medical Dictionary

Miscellaneous (1 matching dictionary)

15. at the same time: Idioms

Definitions from WordNet (at the same time) ▸ adverb:  at the same instant ▸ adverb:  overlapping in duration ("Going to school and holding a job at the same time") Opposite: simultaneously, concurrently, successively, one after other Types: concurrently, simultaneously, contemporaneously, coincidentally, more... Phrases: at the same time as, happening at the same time, happy and sad at the same time, happen at the same time, cause to occur at the same time, more... ▸ Words similar to at the same time ▸ Usage examples for at the same time ▸ Idioms related to at the same time ▸ Wikipedia articles (New!) ▸ Words that often appear near at the same time ▸ Rhymes of at the same time ▸ Invented words related to at the same time