The word 'Quorum' means -

• Quorum:
English meaning: the smallest number of people needed to be present at a meeting before it can officially begin and before official decisions can be taken.
Bangla meaning: সভার বৈধতার জন্য কমপক্ষে যে কয়জন সদস্যের উপস্থিতি প্রয়োজন।

Example: The board meeting was postponed because there were not enough members present to meet the quorum requirement.

Source: Cambridge & Accessible Dictionary.