| 防音 | [ぼうおん, bouon] (n, vs, adj-no) soundproof(ing); (P) [Add to Longdo] |
| 防音室 | [ぼうおんしつ, bouonshitsu] (n) soundproof room [Add to Longdo] |
| 防音設備 | [ぼうおんせつび, bouonsetsubi] (n) soundproofing [Add to Longdo] |
| 防音装置 | [ぼうおんそうち, bouonsouchi] (n) soundproofing (device) [Add to Longdo] |