the primary or most important factor

a significant or dominant characteristic

एक महत्वपूर्ण या प्रमुख विशेषता

English Usage: The principal strain in their relationship was the lack of communication.

Hindi Usage: उनके संबंध में प्रमुख तनाव संचार की कमी थी।

most important or chief

head of a school

स्कूल का प्रमुख

English Usage: The principal of the school announced the new policies.

Hindi Usage: स्कूल के प्रधान ने नई नीतियों की घोषणा की।