Definitions

1. verb

to reduce in quality, amount, or level; to lower or diminish something

“The company will have to downgrade their services due to financial constraints.”

2. noun

a reduction in quality, amount, or level; a lowering or diminishment of something

“The downgrade in service quality has led to customer complaints.”

3. verb (informal)

to reduce the version of an operating system or software to a lower level

“I need to downgrade my OS to be compatible with the older software.”

4. noun (informal)

the act of reducing the version of an operating system or software to a lower level

“The downgrade was necessary to install the game on my old computer.”