The reproductive part of a flowering plant that can grow into a new plant.

बीज

English Usage: The farmer planted the seeds in the field.

Hindi Usage: किसान ने खेत में बीज बोए।

To make or become firm, difficult, or strong.

कठोर करना

English Usage: The sun causes the clay to harden.

Hindi Usage: सूरज मिट्टी को कठोर कर देता है।

The process of becoming hard or solid.

कठोरता

English Usage: The hardening of the material is essential for durability.

Hindi Usage: सामग्री की कठोरता दीर्घकालिकता के लिए आवश्यक है।