We found 2 dictionaries that define the word cou'dn't:

General (2 matching dictionaries)

1. coudn't, coudnt: Wordnik
2. cou'dn't: Wiktionary

Definitions from Wiktionary (Cou'dn't) ▸ verb:  Obsolete form of couldn’t. ▸ Words similar to cou'dn't ▸ Usage examples for cou'dn't ▸ Idioms related to cou'dn't ▸ Wikipedia articles (New!) ▸ Words that often appear near cou'dn't ▸ Rhymes of cou'dn't ▸ Invented words related to cou'dn't