suppress
suh-PRESverbMeaning to put down by force; to keep from being seen or known
Memory hook SUP-PRESS: press it DOWN UNDER. Omar pours bucket after bucket until the campfire is pressed down to nothing: he suppresses the flames.
The firefighters worked all night to suppress the brush fire.
In context The company tried to suppress the report about its faulty toasters, but a worker shared it, and soon every customer knew.
Similar put down, quell, crush, repress
Opposite encourage, reveal, release
From Latin supprimere, “to press under”: sub- (under) + premere (to press).