capo
nounUK /ˈkæpəʊ/
US /ˈkeɪpoʊ/
A capo is a small clamp that you put on a guitar's neck to make the strings sound higher.
She put a capo on the second fret so she could sing the song in a higher key.
OTHER MEANINGS
2. The leader of a group of criminals, especially in the Mafia.
The police finally caught the capo who ran the smuggling ring.
3. A person in charge of a small unit or team, such as a section of workers.
The capo told his crew to finish the job before noon.
4. A type of small fish found in warm waters.
We saw a capo swimming near the rocks in the shallow bay.