Definition of 'upgrade'

Noun

1. an upward slope or grade (as in a road); "the car couldn't make it up the rise"
      Synonyms: ascent acclivity rise raise climb
      Antonyms: descent declivity fall decline declination declension downslope
2. software that provides better performance than an earlier version did
3. a reservation that is improved; "I got an upgrade to first class when coach class was full"
4. the property possessed by a slope or surface that rises
      Synonyms: rise rising slope
5. hardware that provides better performance than an earlier version did
6. the act of improving something (especially machinery) by raising it to a higher grade (as by adding or replacing components); "the power plant received a new upgrade"

Verb

1. rate higher; raise in value or esteem
      Antonyms: downgrade
2. to improve what was old or outdated; "I've upgraded my computer so I can run better software"; "The company upgraded their personnel"
3. give a promotion to or assign to a higher position; "John was kicked upstairs when a replacement was hired"; "Women tend not to advance in the major law firms"; "I got promoted after many years of hard work"
      Synonyms: promote advance kick upstairs raise elevate
      Antonyms: demote bump relegate break kick downstairs
4. get better travel conditions; "I upgraded to First Class when Coach Class was overbooked"
5. give better travel conditions to; "The airline upgraded me when I arrived late and Coach Class was full"

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