We found 19 dictionaries that define the word fifthly:

General (16 matching dictionaries)

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

Computing (1 matching dictionary)

17. fifthly: Encyclopedia

Medicine (1 matching dictionary)

18. fifthly: Medical dictionary

Miscellaneous (1 matching dictionary)

19. fifthly: Idioms

(Note: See fifth as well.)

Definitions from Wiktionary (fifthly) ▸ adverb:  In the fifth place; fifth in a row. Similar: 4thly, thirdly, secondly, secondarily, 2ndly, quintically, nextly, secundly, equifinally, successively, more... Opposite: clean, spotless, pristine, immaculate ▸ Words similar to fifthly ▸ Usage examples for fifthly ▸ Idioms related to fifthly ▸ Wikipedia articles (New!) ▸ Words that often appear near fifthly ▸ Rhymes of fifthly ▸ Invented words related to fifthly