Linchpin Meaning in Bengali

What is the meaning of word Linchpin in Bengali/Bangla ?

Defenition of word Linchpin

• a pin passed through the end of an axle to keep a wheel in position.
• a person or thing vital to an enterprise or organization.

Example

regular brushing is the linchpin of all good dental hygiene

Other Meaning of Linchpin

• NOUN

  অপরিহার্য অংশ part and parcel essential groundwork element soul linchpin
  অপরিহার্য উপাদান linchpin

• MORE

  আসল লোক বা জিনিস linchpin
  গাড়ির চাকার খিল বা পিন linchpin