To disregard (something), to dismiss or ignore (someone), as unimportant.
Used other than figuratively or idiomatically: see brush, off. To remove something with a brush.
To refuse, decline, or deny.
To reduce the power, etc. of something by means of a control, such as the volume, heat, or light.
To reposition by turning, flipping, etc. in a downward direction; to double or fold down.