These difficult nuts to crack require a lot of patience and perseverance.

The differential gears in my car need to be replaced.

There are many distinctions without differences in this debate.

Finite differences are used to approximate derivatives in numerical analysis.

The mass differences between the two objects are significant.

There are potential differences between the two theories.

The set-theoretic differences between the two sets are the elements that are in one set but not in the other.

The symmetric differences between the two sets are the elements that are in one set or the other, but not in both.

The time differences between New York and Tokyo can be quite significant.

Diffuse large B-cell lymphoma is a type of cancer that affects white blood cells.