"An office or post that requires little or no work but provides high pay" is called -

• "An office or post that requires little or no work but provides high pay" is called - Sinecure.

• Sinecure (Noun)
- English meaning: A job that you are paid for even though it involves little or no work.
- Bangla meaning: যে পদের জন্য মর্যাদা বা সম্মানী আছে কিন্তু কাজ বা দায়িত্ব নেই।

• Other options:
- Honorary: (Of a university degree, a rank, etc.) Given as an honour, without the person having to have the usual qualifications.
- Bangla meaning: অবৈতনিক।

- Gratis: Done or given without having to be paid for.
- Bangla meaning: বিনামূল্যে।

- Ad-hoc: Arranged or happening when necessary and not planned in advance.
- Bangla meaning: বিশেষ উদ্দেশ্যে গঠিত; অপূর্বনির্ধারিত; অনানুষ্ঠানিক।

Source: Merriam & Webster Dictionary, Oxford Dictionary, Accessible Dictionary.