We found 18 dictionaries that define the word w o:

General (10 matching dictionaries)

1. w/o: Merriam-Webster
2. w/o: Oxford Learner's Dictionaries
3. w/o: American Heritage Dictionary of the English Language
4. w/o: Collins English Dictionary
5. w-o: Wordnik
6. W. O: Wiktionary
7. w/o: Webster's New World College Dictionary, 4th Ed.
8. w/o: The Wordsmyth English Dictionary-Thesaurus
9. w. o, w/o, w o: Dictionary.com
10. w/o: TheFreeDictionary.com

Art (1 matching dictionary)

11. Glossary of Stamp Collecting Terms (No longer online)

Computing (3 matching dictionaries)

12. W/O: Netlingo
13. W-O: CCI Computer
14. BABEL: Computer Oriented Abbreviations and Acronyms (No longer online)

Miscellaneous (3 matching dictionaries)

15. w/o, w/o, w/o: Terminology and Descriptions of Geneaological Words
16. W/O: Acronym Finder
17. AbbreviationZ (No longer online)

Tech (1 matching dictionary)

18. AUTOMOTIVE TERMS (No longer online)

▸ Words similar to w o ▸ Usage examples for w o ▸ Idioms related to w o ▸ Wikipedia articles (New!) ▸ Words that often appear near w o ▸ Rhymes of w o ▸ Invented words related to w o