understanding

The yawning gap in neuroscientists’ understanding of their topic is in the intermediate scale of the brain’s anatomy. Science has a passable knowledge of how individual nerve cells, known as neurons, work. It also knows which visible lobes and ganglia of the brain do what. But how the neurons are organised in these lobes and ganglia remains obscure.

I thought we had an understanding - you do the dishes, and I throw the trash.

The parties of the negotiation have managed to come to an understanding.

He showed much understanding for my problems when he heard about my past.