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give better travel conditions to; "The airline upgraded me when I arrived late and Coach Class was full"
get better travel conditions; "I upgraded to First Class when Coach Class was overbooked"
rate higher; raise in value or esteem
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"
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"
hardware that provides better performance than an earlier version did
the property possessed by a slope or surface that rises
a reservation that is improved; "I got an upgrade to first class when coach class was full"
software that provides better performance than an earlier version did