Below is the definition for the word you requested, useful for Scrabble and other word games. To find more definitions please use the dictionary page.
to improve what was old or outdated; "I've upgraded my computer so I can run better software"; "The company upgraded their personnel"
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"