A person with whom one shares a secret or private matter, trusting them not to repeat it to others.

A trusted friend or advisor.

एक विश्वस्त मित्र या सलाहकार।

English Usage: The king had a confidant who advised him on important matters.

Hindi Usage: राजा के पास एक विश्वस्त मित्र था जो उसे महत्वपूर्ण मामलों पर सलाह देता था।