silent
"Silent" is a versatile adjective — and occasionally used in other ways — with a handful of closely related but distinct meanings. At its core, it's about the absence of sound or speech, but it stretches into some interesting figurative territory too.
Sometimes 'silent' describes something that exists but is never spoken or shown openly. A silent prayer, for example, is one you say in your mind without making a sound. A silent agreement is one that two people understand without ever discussing it.
everyday language · Modern, widely used · figurative