We found one dictionary that defines the word letting someone know:

General (1 matching dictionary)

1. letting someone know: Merriam-Webster

Phrases: without letting someone know, more... ▸ Words similar to letting someone know ▸ Usage examples for letting someone know ▸ Idioms related to letting someone know ▸ Wikipedia articles (New!) ▸ Words that often appear near letting someone know ▸ Rhymes of letting someone know ▸ Invented words related to letting someone know