I have been to Normandy.

He suffered a knockdown in the boxing match.

He knocked down his opponent.

He won the match by knockout.

He knocked out his opponent with a single punch.

This company demands uniformity in all projects.

This design has uniformity in color.

This vitamin is water-soluble, so it easily dissolves in water.

This cold is highly contagious, so please be careful with prevention.

Database transactions need to ensure their atomicity.