SSWL is a searchable database that allows users to discover which properties (morphological, syntactic, and semantic) characterize a language, as well as how these properties relate across languages. This system is designed to be free to the public and open-ended. Anyone can use the database to perform queries.
From Voc_Pl_01 Can be bare? (https://www.terraling.com/groups/7/properties/517) to Voc_Sg_05 Must have a special vocative marker? (https://www.terraling.com/groups/7/properties/510): 15 properties / Guardiano, Cristina; Koopman, Hilda. - (2016).