12 Letter Words
sphygmophone
28
marimbaphone
23
speakerphone
23
harmoniphone
22
kaleidophone
22
picturephone
21
detectophone
20
electrophone
19
metallophone
19
sarrusophone
17
theatrophone
20
10 Letter Words
hydrophone
22
photophone
20
vibraphone
20
microphone
19
videophone
19
gramophone
18
stylophone
18
mellophone
17
smartphone
17
anglophone
16
lagerphone
16
radiophone
16
interphone
15
sousaphone
15
visiophone
18