Definitions from Wiktionary (upgrade)

▸ noun:  An upward grade or slope.
▸ noun:  An improved component or replacement item, usually applied to technology.
▸ noun:  An improvement.
▸ verb:  (transitive) To improve, usually applied to technology, generally by complete replacement of one or more components.
▸ verb:  (transitive) To replace with something better.
▸ verb:  (transitive) To improve the equipment or furnishings of or services rendered to.
▸ verb:  (intransitive) To improve in condition or status.
▸ verb:  (intransitive, transitive, computing) To replace a program with a later version of itself, a version having a higher version number or marketed under a more recent product name.
▸ adverb:  Up a slope or grade.
▸ Also see upgrade

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