We found 16 dictionaries that define the word smear campaign:

General (11 matching dictionaries)

1. smear campaign: Longman Dictionary of Contemporary English
2. smear campaign: Oxford Learner's Dictionaries
3. smear campaign: Collins English Dictionary
4. smear campaign: Wiktionary
5. smear campaign: Infoplease Dictionary
6. smear campaign: Dictionary.com
7. Smear Campaign (album), Smear campaign: Wikipedia, the Free Encyclopedia
8. smear campaign: AllWords.com Multi-Lingual Dictionary
9. smear campaign: TheFreeDictionary.com

Business (1 matching dictionary)

10. Smear Campaign: Legal dictionary

Computing (1 matching dictionary)

11. Smear Campaign: Encyclopedia

Medicine (1 matching dictionary)

12. Smear Campaign: Medical dictionary

Miscellaneous (1 matching dictionary)

13. smear campaign: Idioms

Slang (1 matching dictionary)

14. smear campaign: Urban Dictionary

Definitions from Wiktionary (smear campaign) ▸ noun:  (idiomatic) An effort to damage or call into question someone's reputation, by propounding negative propaganda. Similar: smear, rumor campaign, swiftboat, rumour campaign, sliming, slander, mudslinging, Smeargate, vilification, calumny, more... Types: mudslinging, fearmongering, innuendo, distortion of facts, cherry-picking, false accusations, more... ▸ Words similar to smear campaign ▸ Usage examples for smear campaign ▸ Idioms related to smear campaign ▸ Wikipedia articles (New!) ▸ Words that often appear near smear campaign ▸ Rhymes of smear campaign ▸ Invented words related to smear campaign