Examples:
* Physical: "The warm bath soothed my aching muscles."
* Emotional: "The music soothed my troubled mind."
Here are some synonyms for soothe:
* Calm
* Comfort
* Ease
* Alleviate
* Relieve
* Pacify
Here are some antonyms for soothe:
* Aggravate
* Irritate
* Exacerbate
* Provoke
* Inflame
In a nutshell, "soothe" means to make something better, calmer, or less painful.