Centrepiece and Linchpin

Centrepiece noun - Something placed at the center of something else (as on a table).

Linchpin and centrepiece are semantically related. In some cases you can use "Linchpin" instead a noun "Centrepiece".

Linchpin noun - A central cohesive source of support and stability.

Centrepiece and linchpin are semantically related. Sometimes you can use "Centrepiece" instead a noun "Linchpin".