D defs.my
Entry 2 senses · 2 variants Webster, 1913

deafening

· deaf·en·ing · IPA /ˈdɛfənɪŋ(ɡ)/
01 n. The act or process of rendering impervious to sound, as a floor or wall; also, the material with which the spaces are filled in this proces…
  1. 1.
    The act or process of rendering impervious to sound, as a floor or wall; also, the material with which the spaces are filled in this process; pugging; sound insulation.
02 a. extremely loud; so loud as to cause deafness; as, a disco with rock music played at a deafening volume.
  1. 1.
    extremely loud; so loud as to cause deafness; as, a disco with rock music played at a deafening volume.