adj.
  - producing or capable of producing much noise.
- strong in expression:![]()  loud protests. ▸obtrusive; gaudy. 
adv.
 with a great deal of volume.
Phrase
  
  Derivative
  
    - louden v.
- loudly adv.
- loudness n.
 
  Etymology
  OE hlūd, of W. Gmc origin; from an Indo-Eur. root meaning ‘hear’.