A response or reply to a question.

A solution to a problem.

समाधान

English Usage: The answer to the puzzle was difficult to find.

Hindi Usage: पहेली का समाधान ढूंढना मुश्किल था।

A source of light, typically having a bulb and a shade.

A device for producing light.

प्रकाशयंत्र

English Usage: She turned on the lamp to read her book.

Hindi Usage: उसने अपनी किताब पढ़ने के लिए दीपक जलाया।