Free USAS Arabic web tagger

This page allows you to run text through the Arabic USAS (UCREL Semantic Analysis System) semantic tagger. More information about the USAS tagger including papers describing its creation, evaluation and applications are on the USAS web page. The USAS Arabic tagger is also available through Wmatrix.

To use the tagger please complete the form below. You can enter up to 100,000 words of Arabic running text. If you enter more, it will be cut off at the word limit. Input format guidelines are available. To tag the text you have entered click the button below the form.

Select output style: Horizontal Vertical Pseudo-XML

This free service is not intended for extremely large numbers of repeated submissions from the same site. Please contact Paul Rayson (email:, also use this address if you have technical problems.