linchpin
6.Toure, the linchpin of their defence, has been banned for three games for his red card.
7.It is the linchpin of the multilateral system as it is the ultimate safeguard of an equitable rule-based framework.
8.This question of responsibility for leadership in the Chinese revolution is the linchpin upon which the success or failure of the revolution depends.
9.But it proved to be the linchpin in my understanding that my colleagues and I—and my profession as a whole—were entering a new stage of development.
10.Greenwich, for its part, reckons a casino at the O2 dome will be the linchpin for a ￡600m investment in shops, hotels and gambling facilities and create as many as 5,000 jobs.
