keyword proximity means how close related your keyword with the searches. For example, if the customers are searching the keyword"loaders", then pages with loaders will come out first, while pages with loader, wheel loader or wheel loaders will rank behind them.
Keyword proximity is the combination of the density of a keyword and the prominence. So proximity looks at the location of the keyword in the sentence and how often it's being used in that sentence and also takes into account the distance between them.
Keyword Proximity refers to one of the tools that counts or calculates the intimacy between two or more keywords. In simple words, it measures how the keyword are closed to each other. It is suggested that it is better if they are immediately one after another. And it is applicable only when the keywords are consist of two or more terms.
Keyword proximity refers to closeness of keywords. Your keywords should be close to each other in content of web page. Many people don’t know about keywords. They generally treats key phrases as a keyword. Usually we do not target keyword.