We found 12 dictionaries that define the word tougher:

General (10 matching dictionaries)

1. tougher: Merriam-Webster
2. tougher: Collins English Dictionary
3. tougher: Vocabulary.com
4. Tougher, tougher: Wordnik
5. tougher: Cambridge Advanced Learner's Dictionary
6. tougher: Wiktionary
7. tougher: Dictionary.com
8. tougher: Cambridge Essential American English Dictionary
9. tougher: FreeDictionary.org
10. tougher: TheFreeDictionary.com

Business (1 matching dictionary)

11. tougher: Legal dictionary

Miscellaneous (1 matching dictionary)

12. tougher: Idioms

(Note: See tough as well.)

Definitions from Wikipedia (Tougher) ▸ noun:  the second studio album by American country singer Lainey Wilson. Phrases: Tougher Than the Rest, Tougher Than Leather, becomes tougher, more... Colors:     charcoal,     steel gray,     gunmetal,     midnight blue,     onyx, more... ▸ Words similar to tougher ▸ Usage examples for tougher ▸ Idioms related to tougher ▸ Wikipedia articles (New!) ▸ Popular adjectives describing tougher ▸ Words that often appear near tougher ▸ Rhymes of tougher ▸ Invented words related to tougher