a strong belief; or a court finding someone guilty
दृढ़ विश्वास; दोषसिद्धि
Usage
Meera spoke with such conviction that the class believed her.
The court's conviction of the official came after three years.
Common mistake
She said it with convince, so we believed her.
She said it with conviction, so we believed her.
Convince is the verb; after with, use the noun conviction.
Remember: Conviction: you are convinced, deep down.