upgrade
1. [ verb ] rate higher; raise in value or esteem
Related terms: downgrade rate
2. [ verb ] to improve, esp. something that was old or outdated;
Examples:

"I've upgraded my computer so I can run better software." "The company upgraded their personnel"

Related terms: better
3. [ noun ] (psychology) a reservation that is upgraded
Examples:

"I got an upgrade to first class when coach class was full"

Related terms: reservation
4. [ verb ] give a promotion to or assign to a higher position
Synonyms: promote elevate raise kick_upstairs advance
Examples:

"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"

Related terms: demote delegate prefer spot_promote bring_up ennoble tenure queen brevet acme promotion
5. [ noun ] (geography) an upward slope or grade (as in a road)
Synonyms: rise acclivity raise climb ascent
Examples:

"the car couldn't make the grade"

Related terms: descent slope uphill climb ascend
6. [ noun ] (computer science) hardware that provides better performance than an earlier version did
Related terms: hardware
7. [ noun ] the act of improving something (especially machinery) by raising it to a higher grade (as by adding or replacing components)
Examples:

"the power plant received a new upgrade"

Related terms: improvement
8. [ noun ] (computer science) software that provides better performance than an earlier version did
Related terms: software
9. [ verb ] give better travel conditions to
Examples:

"The airline upgraded me when I arrived late and Coach Class was full"

Related terms: better
10. [ verb ] get better travel conditions
Examples:

"I upgraded to First Class when Coach Class was overbooked"

Related terms: better
11. [ noun ] the property possessed by a slope or surface that rises
Synonyms: rise rising_slope
Related terms: grade wax