| INFRASOUNDS | • infrasounds n. Plural of infrasound. • INFRASOUND n. frequencies below the usual audible limit. |
| MISSOUNDING | • missounding v. Present participle of missound. • MISSOUND v. to sound wrongly. |
| SOUNDALIKES | • soundalikes n. Plural of soundalike. • sound-alikes n. Plural of sound-alike. • SOUNDALIKE n. one that sounds like another. |
| SOUNDBOARDS | • soundboards n. Plural of soundboard. • SOUNDBOARD n. a thin resonant board (as the belly of a violin) so placed in an instrument as to reinforce its tones by sympathetic vibration. |
| SOUNDLESSLY | • soundlessly adv. In a manner that makes no noise. • SOUNDLESS adv. without sound. |
| SOUNDNESSES | • soundnesses n. Plural of soundness. • SOUNDNESS n. the state of being sound. |
| SOUNDPROOFS | • soundproofs v. Third-person singular simple present indicative form of soundproof. • SOUNDPROOF v. to insulate so as to obstruct the passage of sound. |
| SOUNDSCAPES | • soundscapes n. Plural of soundscape. • SOUNDSCAPE n. in pop music, a mixture of sounds producing an overall effect. |
| SOUNDSTAGES | • soundstages n. Plural of soundstage. • sound␣stages n. Plural of sound stage. • SOUNDSTAGE n. the soundproof area of a motion picture studio. |
| SOUNDTRACKS | • soundtracks n. Plural of soundtrack. • sound␣tracks n. Plural of sound track. • SOUNDTRACK n. a recording of the sound (esp. musical) accompaniment to a film. |
| SUPERSOUNDS | • supersounds n. Plural of supersound. • SUPERSOUND n. sound vibrations too rapid to be audible. |
| ULTRASOUNDS | • ultrasounds n. Plural of ultrasound. • ULTRASOUND n. vibrations of the same physical nature as sound but with frequencies above the range of human hearing. |
| UNSOUNDABLE | • unsoundable adj. Impossible to sound; whose depth cannot be gauged. • UNSOUNDABLE adj. not soundable. |
| UNSOUNDNESS | • unsoundness n. The state of being unsound. • UNSOUNDNESS n. the state of being unsound. |