Grind organ and Musical instrument

Grind organ noun - A musical instrument that makes music by rotation of a cylinder studded with pegs.

Musical instrument and grind organ are semantically related. In some cases you can use "Musical instrument" instead a noun phrase "Grind organ".

Musical instrument noun - Any of various devices or contrivances that can be used to produce musical tones or sounds.

Grind organ and musical instrument are semantically related. Sometimes you can replace phrase "Grind organ" with "Musical instrument", this phrases are similar.