Yes, see `:help iskeyword` Different file types can have different values for this. For example in clojure / and : are commonly used, so they are added to `isk

Yes, see `:help iskeyword` Different file types can have different values for this. For example in clojure / and : are commonly used, so they are added to `iskeyword`. In .clj files "w" navigates across `:person/first-name` as one word. Also FYI if you didn't know and are having that problem with URLs, capital E and W navigate across vim WORDS, which is defined as all non-whitespace characters.