GSSE meaning in Regional ?

Answer: What is Games of the Small States of Europe mean?

The Games of the Small States of Europe (GSSE) is a biennial multi-sport event, launched by the Republic of San Marino, organized by and featuring the National Olympic Committees of nine European small states since 1985. The Games are held at the end of May or beginning of June and feature competition in nine Summer Olympic sports.

reference

Full Form	Category
Graduate School of Science and Engineering	Academic & Science
Governor's Schools for the Sciences and Engineering	Academic & Science
Graduate School of Sciences and Engineering	Academic & Science
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Smart Solved Engineering	Academic & Science
General Service Support Estimate	General
Global Sun and Shade Estimator	General
Global Studies and Social Entrepreneurship	General
Generic Substation State Events	General
Gold Star Standards of Excellence	General
Global Social and Sustainable Enterprise	General
General Services Support Estimate	General
Global Social Sustainable Enterprise	General
Games of the Small States of Europe	Regional