We found 24 dictionaries that define the word swiftly:

General (19 matching dictionaries)

1. swiftly: Merriam-Webster
2. swiftly: Oxford Learner's Dictionaries
3. swiftly: Collins English Dictionary
4. swiftly: Vocabulary.com
5. Swiftly, swiftly: Wordnik
6. swiftly: Cambridge Advanced Learner's Dictionary
7. swiftly: Wiktionary
8. swiftly: Dictionary.com
9. swiftly: Cambridge Essential American English Dictionary
10. Swiftly: Online Plain Text English Dictionary
11. swiftly: Webster's Revised Unabridged, 1913 Edition
12. swiftly: Rhymezone
13. Swiftly: AllWords.com Multi-Lingual Dictionary
14. swiftly: Webster's 1828 Dictionary
15. swiftly: FreeDictionary.org
16. swiftly: Mnemonic Dictionary
17. swiftly: TheFreeDictionary.com

Business (2 matching dictionaries)

18. swiftly: Legal dictionary
19. swiftly: Financial dictionary

Computing (1 matching dictionary)

20. swiftly: Encyclopedia

Medicine (1 matching dictionary)

21. swiftly: Medical dictionary

Miscellaneous (1 matching dictionary)

22. swiftly: Idioms

Definitions from Wiktionary (swiftly) ▸ adverb:  In a swift manner; quickly; with quick motion or velocity; fleetly. Similar: fleetly, speedily, speedingly, rapidly, fast, in short order, quickly, speedfully, swift, with a quickness, more... Opposite: slowly, leisurely, sluggishly, tardily, deliberately Types: cheetah, gazelle, puma, lion, leopard, more... Phrases: A Swiftly Tilting Planet, move swiftly, to move swiftly, move swiftly along, turn swiftly, more... Colors:     silver,     gray,     white,     sky blue,     electric blue, more... ▸ Words similar to swiftly ▸ Usage examples for swiftly ▸ Idioms related to swiftly ▸ Wikipedia articles (New!) ▸ Words that often appear near swiftly ▸ Rhymes of swiftly ▸ Invented words related to swiftly