Welcome to the “Arbitrary Collocations of Lithuanian: Identification, Description and Usage (ARKA)” project’s website. The project is funded by the Research Council of Lithuania (No. S-LIP-20-18) under the State Lithuanian Studies and Dissemination Programme for 2016-2024. The project, implemented by the Center of Computational Linguistics at the Faculty of Humanities, Vytautas Magnus University, aims to describe the criteria of arbitrary collocation identification for the Lithuanian language and prepare related lexicographical and teaching resources.