Tagging is the practice of generating keywords to classify and describe online content for users, according to the article Tagging. For instance, this article was tagged Navigation.
Click on the word Navigation underlined on the line to list all articles closely related, which have the same tag. Each blog post is tagged for proper blog navigation and article retrieval pursuant to this post.
There are cases in which the same word has the same meaning in more than one language. For example, the word Navigation belongs to both English and French, but you can recognize easily the desired article(s) because of idiomatic differences.