We found 3 dictionaries that define the word be in the know:

General (2 matching dictionaries)

1. be in the know: Oxford Learner's Dictionaries
2. be in the know: Cambridge Advanced Learner's Dictionary

Miscellaneous (1 matching dictionary)

3. be in the know: Idioms

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