Foodies, gardeners and musicians are probably well aware of the difference between a tuba and a tuber.
- a large, low-pitched brass musical instrument with valves and a broad bell (that typically faces upwards)
- a fleshy, thickened underground root or stem of a plant
- a rounded swelling or protuberance
Accidentally writing about someone ‘playing a tuber’ would be unfortunate. My suggestion is to try to remember that a tuber grows underground.