let you know is not in our dictionary (yet). Here's what it could mean:

Results generated using artificial intelligence.

verb phrase

To inform or update another person about a particular matter, typically at a future time.

Examples are provided to illustrate usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“I’ll let you know when there’s no cease-fire,” Trump told reporters in Washington.

From Barron's • May 8, 2026

"You'll find out because I'll let you know," he responded.

From BBC • May 5, 2026