We found 2 dictionaries that define the word koolen:

General (2 matching dictionaries)

1. Koolen: Wikipedia, the Free Encyclopedia
2. Koolen: Wiktionary

Definitions from Wiktionary (Koolen) ▸ noun:  A surname from Dutch. ▸ Words similar to koolen ▸ Usage examples for koolen ▸ Idioms related to koolen ▸ Wikipedia articles (New!) ▸ Popular adjectives describing koolen ▸ Words that often appear near koolen ▸ Rhymes of koolen ▸ Invented words related to koolen