We found 13 dictionaries that define the word by a long shot:

General (11 matching dictionaries)

1. by a long shot: Merriam-Webster
2. by a long shot: Oxford Learner's Dictionaries
3. by a long shot: Collins English Dictionary
4. by a long shot: Vocabulary.com
5. by a long shot: Wiktionary
6. by a long shot: Dictionary.com
7. by a long shot: Rhymezone
8. BY A LONG SHOT: Dictionary of Americanisms (1848)
9. by a long shot: FreeDictionary.org
10. by a long shot: Mnemonic Dictionary
11. by a long shot: TheFreeDictionary.com

Computing (1 matching dictionary)

12. by a long shot: Encyclopedia

Miscellaneous (1 matching dictionary)

13. by a long shot: Idioms

Definitions from WordNet (by a long shot) ▸ adverb:  by a great deal ("He is the best by a long shot") Phrases: not by a long shot, more... ▸ Words similar to by a long shot ▸ Usage examples for by a long shot ▸ Idioms related to by a long shot ▸ Wikipedia articles (New!) ▸ Words that often appear near by a long shot ▸ Rhymes of by a long shot ▸ Invented words related to by a long shot