Cello part

• Spike on a cello or double bass
• Leg on which a cello rests
• Part of a cello that supports the instrument on the floor

Wikipedia Word definitions in Wikipedia
The endpin or spike is the component of a cello or double bass that makes contact with the floor to support the instrument's weight. It is made of metal, carbon fiber, or, occasionally, wood, and is extensible from the bottom of the instrument, and secured ...

Wiktionary Word definitions in Wiktionary
n. (context music lutherie English) The spike of a cello or double bass that makes contact with the floor.