We found one dictionary that defines the word fill the gaps:

General (1 matching dictionary)

1. fill the gaps: Merriam-Webster

Phrases: fill in the gaps, more... ▸ Words similar to fill the gaps ▸ Usage examples for fill the gaps ▸ Idioms related to fill the gaps ▸ Wikipedia articles (New!) ▸ Words that often appear near fill the gaps ▸ Rhymes of fill the gaps ▸ Invented words related to fill the gaps