A woman had died as a result of his ignorance.

I may be able to make use of his ignorance in the future.

Something needs to be done so this kind of ignorance doesn't continue.

After years of ignorance and fear, she now knew the truth.

"I could have told you of your ignorance before we left."

At one time, this kind of ignorance may not have meant much for the nation's public life.

And we're making policy on the basis of our ignorance.

And it probably also has a greater share of ignorance than other sports.

He said the vote was "based on a lot of ignorance."

How often did people instead do it without meaning to, or out of ignorance?