developed country: a sovereign state that has a high quality of life, developed economy and advanced technological infrastructure relative to other less industrialized nations
çekim: çoğul negara-negara maju
zıt: negara berkembang
köken: Compound of negara (“country”) + maju (“advanced, forward”), inherited from Malay negara maju, calque from Japanese 先進国(せんしんこく) (senshinkoku, “developed country”, literally “advanced country”).