0 0 Arabic Ontology The Arabic Ontology An Arabic Wordnet with ontologically-clean content. Classification of the meanings of the Arabic terms, based on state-of-art science, rather than on speakers' naïve knowledge, see. 150 Dictionaries Multilingual dictionaries were digitized and integrated. Only the semantic features (definitions, synonyms, translations) are currently displayed, soon the morphological features. Ontology Top Levels The top levels of the Arabic Ontology tree are the most abstract concepts in Arabic; they are philosophically and logically well defined. This figure shows only the top three levels.