What is the meaning of Upgrade?

An upward grade or slope.

An improved component or replacement item, usually applied to technology

An improvement

To improve, usually applied to technology, generally by complete replacement of one or more components

To replace with something better.

To improve the equipment or furnishings of or services rendered to

To improve in condition or status.

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. (Can we add an example for this sense?)

Up a slope or grade.

inflection of upgraden:

  1. first-person singular present indicative
  2. singular present subjunctive
  3. imperative

first-person singular present indicative

singular present subjunctive

imperative

upgrade (modernisation of technology)

an upgrade

Source: wiktionary.org