Through collective efforts across an interwoven network, we pursue our mission of co-constructing and maintaining an open access controlled vocabulary of Montessori terms. The Montessori Glossary is an evolving, iterative co-construction project grounded in shared knowledge and authority. As a controlled vocabulary of terms used to describe Montessori information resources, the glossary aims to serve as a companion to broad subject term vocabularies. Our mission is to improve discovery and access to Montessori resources whilst supporting Montessori educator competencies. We envision an international, multilingual linked data vocabulary of Montessori terms that enhances access to Montessori resources within cultural institutions, community archives, and Montessori teacher preparation programs. Leveraging Web 2.0 technologies, we endeavor to facilitate a participatory process that lifts up the multiplicity of diverse perspectives, meanings, and contexts. In the spirit of democratization and shared knowledge production, we seek to sustain a living vocabulary that is inclusive, culturally-sustaining, and multilingual.