| upgrade | (n) software that provides better performance than an earlier version did |
| upgrade | (n) a reservation that is improved, Example: I got an upgrade to first class when coach class was full |
| upgrade | (n) the property possessed by a slope or surface that rises, Syn. rise, rising slope |
| upgrade | (n) hardware that provides better performance than an earlier version did |
| upgrade | (n) the act of improving something (especially machinery) by raising it to a higher grade (as by adding or replacing components), Example: the power plant received a new upgrade |
| upgrade | (v) rate higher; raise in value or esteem, Ant. downgrade |
| upgrade | (v) to improve what was old or outdated, Example: I've upgraded my computer so I can run better software; The company upgraded their personnel |
| upgrade | (v) get better travel conditions, Example: I upgraded to First Class when Coach Class was overbooked |
| upgrade | (v) give better travel conditions to, Example: The airline upgraded me when I arrived late and Coach Class was full |