"Pepper" in Engpsh is usually referred to as "pepper." The word "pepper" in Engpsh originally referred to black pepper, a spicy plant native to India, but now also commonly refers to various other types of spicy plants, such as red pepper, green pepper, and white pepper.

Example sentences in Engpsh:

I love adding pepper to my food to make it spicier.
The dish was too bland, I think it needs some more pepper.
Black pepper is one of the most commonly used spices in cooking.

Example sentences in Chinese:

我喜欢在我的食物中加辣椒让它变得更辣。
这道菜太无味了，我认为需要加点辣椒。
黑胡椒是烹饪中最常用的香料之一。