Estonian UK /ɛˈstəʊ.nɪ.ən/US /ɛˈstoʊ.ni.ən/noun 3adjective 1forms 1 noun3 •A person of the indigenous ethnic group of Estonia or someone descended from such people. •Any person from Estonia or someone descended from such people. •The Uralic language that is the official language of Estonia. adjective1 •Of, from, or pertaining to the country of Estonia, its people or their language. formsEstonians