institution meaning in Bangla — প্রতিষ্ঠান

Meaning

An organisation set up for a purpose, or a long-established custom.

Synonyms: school, college

school
বিদ্যালয়, স্কুল
A place where children go to learn.
college
কলেজ, মহাবিদ্যালয়
A place of study after school, before or instead of university.

firm
A business company; or solid and not easily moved or changed.
enterprise
A business or project, especially a bold one, or the spirit of starting such things.
organization
A group of people working together for a purpose, or the way something is arranged.
tradition
A custom or belief passed down over many years.
custom
A usual way of doing things among a group of people.
convention
A way of behaving that most people accept, or a large formal meeting.

A fee is normally what you pay a professional or an institution for their work or their service — a doctor's fee, a tuition fee, an admission fee.
Cost, Price, Fare, Fee and Rent: Which Money Word? →
Yes, wherever the institution has one, with a signature and the writer's designation, department and institutional email underneath.
How to Write a Recommendation Letter →
Use the title the institution itself uses: a school is normally headed by a Headmaster or Headmistress, a college by a Principal.
How to Write an Application to the Headmaster →