She won the tournament with a rare four-of-a-kind, which surprised even the seasoned players.

The style guide lists five-of-a-kind as an alternative form of the poker hand where all five cards are of the same rank.

At the flea market, she couldn't believe her luck when she discovered a two-of-a-kind: two identical vintage watches.

When I was sick, my kind bud brought me soup and stayed by my side all afternoon.

She nervously revealed a three-of-a-kind on the river and watched her opponent fold.

Researchers must carefully control the significance level to avoid an error of the first kind when testing the new drug.

When designing the experiment, she carefully considered the risk of an error of the second kind and adjusted the sample size accordingly.

When reviewing the clinical trial results, the statisticians noted several errors of the first kind that could invalidate the conclusions.

In clinical trials, ignoring errors of the second kind can cause ineffective treatments to be mistakenly judged as beneficial.

The research lab unveiled a first-of-its-kind device that can convert seawater into drinking water using only solar power.