We found 12 dictionaries that define the word run afoul:

General (7 matching dictionaries)

1. run afoul: Vocabulary.com
2. run afoul: Wiktionary
3. run afoul: Dictionary.com
4. run afoul: Rhymezone
5. run afoul: FreeDictionary.org
6. run afoul: Mnemonic Dictionary
7. run afoul: TheFreeDictionary.com

Business (2 matching dictionaries)

8. run afoul: Legal dictionary
9. run afoul: Financial dictionary

Computing (1 matching dictionary)

10. run afoul: Encyclopedia

Miscellaneous (1 matching dictionary)

11. run afoul: Idioms

Tech (1 matching dictionary)

12. SeaTalk Dictionary of English Nautical Language (No longer online)

Definitions from Wiktionary (run afoul) ▸ verb:  (transitive, intransitive, nautical) To become entangled or in conflict with. Similar: infringe, conflict, contravene, run afoul of, fall foul, go awry, rub up against, interfere, come unstuck, get between, more... Opposite: comply, abide by, follow, adhere to Phrases: run afoul of, to run afoul of, more... Adjectives: run, hit-and-run, run in, run-in, run-on ▸ Words similar to run afoul ▸ Usage examples for run afoul ▸ Idioms related to run afoul ▸ Wikipedia articles (New!) ▸ Words that often appear near run afoul ▸ Rhymes of run afoul ▸ Invented words related to run afoul