specialist n.

/ ˈspeSH(ə)ləst /
বিশেষজ্ঞ
/ bishexójnyó /
Meanings
1
a person who concentrates primarily on a particular subject or activity; a person highly skilled in a specific and restricted field
বিশেষজ্ঞ
"He is an eye specialist."
"তেওঁ এজন চকুৰ বিশেষজ্ঞ ।"