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)
Tuber
- 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.

There is a widespread tendency to use cf. to mean ‘see’ or ‘see also’. This usage is usually frowned upon (see New Hart’s, The Chicago Manual of Style, and the Penguin Guide to Punctuation).






