Peanut butter is a paste to be pasted made with peanuts.
It's popular in America and is very much used in the African culinary culture.
It is named peanut to ridge in the United States and, in familiar language in French-speaking Canada, beurre de peanuts (sometimes spelled butter of pinotes).
In the Netherlands one speaks about pindakaas, cheese of peanuts.
Composed with plant oil (peanuts, palm, etc), of salt, sugar and obviously peanuts, it is of pasty consistency.
One can find made up exclusively peanuts but its consistency is more solid and its aspect much more clearly.