0 the most important member of a group or part of a system, that holds together the other members or parts or makes it possible for them to operate as intended: --
1 a person or thing that is the most important part of a group or system’s operation: --
The city’s River Park is the linchpin of its efforts to sell itself as a vacation destination.
2 the most important member of a group or part of a system, that holds together the other members or parts or makes it possible for them to operate as intended: --
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Можем да го завършим стъпка по стъпка, колкото и дълъг да е пътят и не може да бъде завършен, колкото и кратък да е пътят, ако дори не маркирате отпечатъка си.