She showed great loving-kindnesses towards her friends.

The garden is filled with many-kinded flowers.

This is the first car of its kind.

She kills with kindness.

She killed him with kindness.

She is killing with kindness by always offering to help others.

It takes all kinds to make a world.

There were several errors of the second kind in the report.

In hypothesis testing, an error of the second kind occurs when the null hypothesis is not rejected even though it is false.

The researcher made an error of the first kind in their statistical analysis.