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upgrade

noun

an upward slope or grade (as in a road); "the car couldn''t make it up the rise"
Synonyms: acclivity, ascent, climb, raise, rise Antonyms: descent, declivity, fall, decline, declination, declension, downslope
software that provides better performance than an earlier version did
a reservation that is upgraded; "I got an upgrade to first class when coach class was full"
the property possessed by a slope or surface that rises
Synonyms: rise, rising slope
hardware that provides better performance than an earlier version did
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

rate higher; raise in value or esteem
Antonyms: downgrade
to improve, especially something that was old or outdated; "I''ve upgraded my computer so I can run better software"; "The company upgraded their personnel"
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: advance, elevate, kick upstairs, promote, raise Antonyms: demote, bump, relegate, break, kick downstairs
get better travel conditions; "I upgraded to First Class when Coach Class was overbooked"
give better travel conditions to; "The airline upgraded me when I arrived late and Coach Class was full"