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The keywords list in AntConc is, as the name suggests, a tool to create a list of keywords. To do this your target corpus is compared to a reference corpus. The target and reference corpora do not need to be of the same size. The comparison is then done statistically. The statistics in AntConc used for this task are either chi-squared and log-likelihood.

In AntConc load your corpus or corpora. Go to Wordlist tab then click start.

Select the Tools Preference menu.

Click the ‘Keywords List’ option, then click ‘Add Files’.

Check the desired file is there. Click ‘Load’ then click ‘Apply’.

Go to ‘Keyword List’ tab then click ‘Start’.

A list of types should appear like this.

The keywords are ranked by default by the keyness. In this example the top ranking type in “english” with a score keyness (in this example, chi-squared) of 729.913 (this is a combined score of both the target and reference type score). And it has a frequency of 822 in the target list.