To assure someone that one will definitely do something.

To give a sign or indication of future success.

भविष्य की संभावना देना

English Usage: This new project promises great returns.

Hindi Usage: यह नया प्रोजेक्ट अच्छे लाभ की संभावना देता है।

A declaration or assurance that one will do something or that a particular thing will happen.

A reason to expect something.

आशा

English Usage: The promise of better weather made everyone excited for the picnic.

Hindi Usage: बेहतर मौसम की आशा ने सभी को पिकनिक के लिए उत्सुक बना दिया।