We found 3 dictionaries that define the word on a lighter note:

General (2 matching dictionaries)

Slang (1 matching dictionary)

1. On a lighter note: Urban Dictionary

▸ Words similar to on a lighter note ▸ Usage examples for on a lighter note ▸ Idioms related to on a lighter note ▸ Wikipedia articles (New!) ▸ Words that often appear near on a lighter note ▸ Rhymes of on a lighter note ▸ Invented words related to on a lighter note