contralto /kən-tralˈtō or -trälˈ/

1. The lowest musical voice in women
2. A singer with such a voice
3. A part for such a voice

Of or suitable for a contralto

• threshes
• threshing
• threshing floor
• threshing floors
• threshing machine
• threshing machines
• threshing mill
• threshings
• threshold
• threshold dose
• threshold doses
• threshold lighting
• threshold lights
• threshold of audibility
• threshold of sound
• thresholds
• thretty
• threw
• thrice
• thrid
• thridace
• thridaces
• thridded
• thridding
• thrids