A person who has received instruction or training to assist others.

एक व्यक्ति जिसे दूसरों की सहायता के लिए प्रशिक्षण प्राप्त हुआ है।

English Usage: The trained assistant helped the doctor during the surgery.

Hindi Usage: प्रशिक्षित सहायक ने सर्जरी के दौरान डॉक्टर की सहायता की।