Yes. Still is a synonym for Silent.
Yes, "still" can be a synonym for silent when referring to someone being quiet or not speaking.
Quiet, hushed, noiseless.
Quiet.
quiet silent and it goes on
noiseless, quiet, silent
Synonym for the word still: Stable
still
still
"still" and stille nacht
Synonym: Cringed, Shake Antonym: Shivered, Still & Brave
The Romans believed that things that seemed calm, IE, a silent dog and still water, could still hurt you. Stagnant water is often poisonous (which happens as the bacteria therein are allowed to multiply over time), and a silent dog can still (and if they are focused on you but are silent, still, and alert, very well may) bite you.
still, non moving
Synonym