How would removing the es ending in illnesses change meaning of word?

Removing the "es" ending from "illnesses" changes the word to "illness," which means a disease or ailment affecting the body or mind.

Here's the breakdown of the change:

* illnesses: The plural form, referring to multiple diseases or ailments.

* illness: The singular form, referring to a single disease or ailment.

Therefore, removing the "es" changes the word from plural (multiple illnesses) to singular (one illness).