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Noun: speaking tube  speeking t(y)oob
  1. A tube for conveying the sound of a voice from one room to another

Derived forms: speaking tubes

Type of: tube, tubing

Encyclopedia: Speaking tube

Nearest

speakeasy
Speaker
speaker
speaker identification
speaker system
speaker unit
speakerphone
speakership
speaking
speaking trumpet
speaking tube
spear
spear carrier
spear thistle
spear thrower
spear up
spearer
spearfish
spearhead
spearhead-shaped
spearman