Real Dictionary

pepper
If something is peppered with small objects, a lot of those objects hit it.
countable noun: A pepper, or in American English a bell pepper, is a hollow green, red, or yellow vegetable with seeds inside it.
uncountable noun: Pepper is a hot-tasting spice which is used to flavour food.
verb: If something is peppered with things, it has a lot of those things in it or on it.

pepper in American English
a pungent condiment obtained from the small, dried fruits of an East Indian vine (Piper nigrum) of the pepper family
noun: a pungent condiment obtained from various plants of the genus Piper, esp. from the dried berries, used whole or ground, of the tropical climbing shrub P. nigrum

pepper in British English
noun: a woody climbing plant, Piper nigrum, of the East Indies, having small black berry-like fruits: family Piperaceae