Word Frequency Options
By default, the word frequency lists in Scrivener's Statistics pane show a list of all words that have been used. However, you may wish to omit from the list common words such as "the", "and" and suchlike. This can be done by providing Scrivener with a list of common words that it should ignore.
To do so, simply type the list of the words you wish Scrivener to ignore in a text editor such as TextEdit. Type each word on a separate line and save the file in plain text (.txt) format using UTF8 encoding (which is usually the default). Then, in the "Options" pane of Scrivener's Statistics panel, click on the button labelled "Choose List of Words to Ignore…" and select the file containing the list.
This list will henceforth be used by all projects, and any words in this list will not appear in the word frequency tables.