We found 7 dictionaries that define the word cannon balls:

General (5 matching dictionaries)

1. cannon balls: Vocabulary.com
2. cannon-balls: Wordnik
3. cannon balls: Cambridge Advanced Learner's Dictionary
4. cannon-balls, cannon balls: Wiktionary
5. cannon balls: Dictionary.com

Computing (1 matching dictionary)

6. Cannon balls: Encyclopedia

Slang (1 matching dictionary)

7. Cannon Balls: Urban Dictionary

(Note: See cannon_ball as well.)

Definitions from Wiktionary (Cannon ball) ▸ noun:  Alternative form of cannonball [(military, weaponry)] ▸ Also see cannon_ball Phrases: small cannon balls, more... ▸ Words similar to cannon balls ▸ Usage examples for cannon balls ▸ Idioms related to cannon balls ▸ Wikipedia articles (New!) ▸ Words that often appear near cannon balls ▸ Rhymes of cannon balls ▸ Invented words related to cannon balls