flush
Definitions
To become red and hot, typically as the result of illness, strong emotion, or physical exertion.
To cleanse or wash out an area with a copious flow of water.
Level or even with another surface.
Examples
Make sure to flush the toilet after you are finished using it.
Her cheeks began to flush with embarrassment when she realized her mistake.
The carpenter made sure the wooden panel was perfectly flush with the wall.