hornpipe vs stockhorn

hornpipe and stockhorn both are nouns.

Word	Noun	Adjective	Verb	Adverb
hornpipe	Yes	No	No	No
stockhorn	Yes	No	No	No

As nouns, hornpipe and stockhorn are synonyms defined as:

hornpipe and stockhorn: an ancient (now obsolete) single-reed woodwind; usually made of bone

Other synonyms of hornpipe include pibgorn.

hornpipe (noun)	stockhorn (noun)
a British solo dance performed by sailors	an ancient (now obsolete) single-reed woodwind; usually made of bone
an ancient (now obsolete) single-reed woodwind; usually made of bone
music for dancing the hornpipe