Meanings of obviate much in English

He knew that Shoop's mere name would obviate much argument and bickering.

This will obviate much of the trial-and-error processes in breeding programmes and allow for much more targeted approaches.

The context is still clear enough in our minds to obviate much explanation; yet the issues are no longer contentious.

That openly discussed euthanasia can cushion or even obviate much of this hurt is something I hadn't really considered before meeting the de Gooijers.