Meaning of UPGRADE in English

/ ˌʌpˈgreɪd; NAmE / verb [ vn ] [ often passive ]


to make a piece of machinery, computer system, etc. more powerful and efficient


upgrade sb (to sth) to give sb a more important job

SYN promote


upgrade sb (to sth) to give sb a better seat on a plane, room in a hotel, etc. than the one that they have paid for


to improve the condition of a building, etc. in order to provide a better service :

to upgrade the town's leisure facilities

—compare downgrade

►  up·grade / ˈʌpgreɪd/ noun

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.