Look at this sentence:

Mr Baker, who is an experienced musician, can play the trumpet, the horn, and the tuba.

Select the definition of horn that the sentence uses.

horn \hawn\ noun pl horns 1. a hard, pointed part on some animals’ heads: Most goats have two horns on top of their heads. 2. a musical instrument that you play by blowing: Luca practises his horn every day. 3. the part of a car that makes a loud noise: The driver honked his horn at us.