[n. uhp-greyd; adj., adv. uhp-greyd; v. uhp-greyd, uhp-greyd] 
noun, adjective, adverb, verb, -grad⋅ed, -grad⋅ing.| 1. | an incline going up in the direction of movement. |
| 2. | an increase or improvement: an upgrade in the year's profit forecast. |
| 3. | a new version, improved model, etc.: The company is offering an upgrade of its sports sedan. |
| 4. | an increase or improvement in one's service, accommodations, privileges, or the like: If the ship isn't full we'll receive an upgrade to a deluxe stateroom. |
| 5. | something, as a piece of equipment, that serves to improve or enhance: a full range of upgrades available for your computer. |
| 6. | uphill; of, pertaining to, on, or along an upgrade. |
| 7. | up a slope. |
| 8. | to promote to a higher grade or rank: He has been upgraded to senior vice president. |
| 9. | to improve or enhance the quality or value of: to upgrade property by landscaping it. |
| 10. | to improve the quality, value, effectiveness, or performance of something: Buy this basic computer and upgrade whenever you're ready. |
