We found 5 dictionaries that define the word on the cusp:

General (4 matching dictionaries)

1. on the cusp: Longman Dictionary of Contemporary English
2. on the cusp: Merriam-Webster

Miscellaneous (1 matching dictionary)

3. on the cusp: Idioms

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