We found 17 dictionaries that define the word gladder:

General (14 matching dictionaries)

1. gladder: Merriam-Webster
2. gladder: Oxford Learner's Dictionaries
3. gladder: Collins English Dictionary
4. gladder: Vocabulary.com
5. gladder: Wordnik
6. gladder: Wiktionary
7. Gladder, gladder: Dictionary.com
8. gladder: Cambridge Essential American English Dictionary
9. Gladder: Online Plain Text English Dictionary
10. gladder: Webster's Revised Unabridged, 1913 Edition
11. Gladder: AllWords.com Multi-Lingual Dictionary
12. gladder: Webster's 1828 Dictionary
13. gladder: FreeDictionary.org
14. Gladder: TheFreeDictionary.com

Business (1 matching dictionary)

15. gladder: Legal dictionary

Miscellaneous (1 matching dictionary)

16. gladder: Idioms

Slang (1 matching dictionary)

17. Gladder: Urban Dictionary

(Note: See glad as well.)

Definitions from Wiktionary (Gladder) ▸ verb:  (nonstandard, proscribed, rare) Alternative form of gladden [(transitive) To cause (something) to become more glad.] Similar: Gladden, engladden, begladden, cheer, gladden someone's heart, exhilarate, greaten, enlargen, happy, brighten up, more... ▸ Words similar to gladder ▸ Usage examples for gladder ▸ Idioms related to gladder ▸ Wikipedia articles (New!) ▸ Words that often appear near gladder ▸ Rhymes of gladder ▸ Invented words related to gladder