IPA: /ˈkwaɪətər/
KK: /ˈkwaɪətər/
This word describes something that produces less noise or is more silent than something else.
The library is quieter than the cafeteria.
Quieter → It is formed from "quiet" (from Latin "quietus", meaning at rest or calm) and the comparative suffix "-er" (meaning more). The word "quieter" means more calm or at rest compared to something else.
Think of 'quiet' as being calm or at rest, and remember that 'quieter' means more so than before.