This book constitutes the refereed proceedings of the 9th International Conference, NooJ 2015, held in Minsk, Belarus, in June 2015. NooJ 2015 received 51 submissions. The 20 revised full papers presented in this volume were carefully reviewed and selected from the 35 papers that were presented at the conference. The papers are organized in topical sections on corpora, vocabulary and morphology; syntax and semantics; application.