How to realize how academics and stakeholders try to help citizens understanding ecoresponsible conducts ? With the "Transition Towns MOVIDA" project, we wish to identify levers related to a most collective and sustainable consumption. The present proposal consider major terms definition that can support the socio-ecological transition in a crosswords and cross-boundary context from Nineteenth till Twenty-First Century: Nature - Environment - Sustainable Development - Ecology - Transition. The proposal attend to clarify the needs and the use of keywords in books and reviews, library classification schemes, digital databases or Internet web pages that changed individual and collective perception such as "atomic", "nuclear", "waste", "public health", "greenhouse gas emission", "pollution", "doomsayer", "ambiente", "milieu" or "umwelt".