: The mathematical nature of description logics has meant that domain experts find it hard to understand. This forms a significant impediment to the creation and adoption of ontologies. A number of approaches are being taken to attempt to mitigate this problem. The two most common approaches are to either provide an English like syntactic veneer to OWL, or to provide a way to convert OWL statements to English to render them more readable. This paper introduces a constrained English language called Rabbit that has been designed to better enable domain experts to author ontologies in a way that is understandable to them. Rabbit is intended to improve on existing methods through: greater clarity of expression due to the involvement of the domain expert both in the development of Rabbit, its authoring and use; the ability to hide certain modelling complexities and optimisations; and encouragement, through its grammar, to produce short sentences that are more easily interpretable. We see Ra...