the leader or head of a group or organization

someone who assists or helps another

used to indicate importance or superiority

अत्यधिक महत्वपूर्ण

English Usage: He played a chief role in the project’s success.

Hindi Usage: उसने परियोजना की सफलता में अत्यधिक महत्वपूर्ण भूमिका निभाई।

as a subordinate or aide

सहायक के रूप में

English Usage: The chief assistant organized the meeting efficiently.

Hindi Usage: मुख्य सहायक ने बैठक को कुशलतापूर्वक संगठित किया।