Corno di bassetto is an Italian term used to describe the basso oboe. However, there are a few synonyms that can also be used to describe this instrument. One common synonym is the "basset horn", which is the English translation of corno di bassetto. Another synonym is the "tenoroon", which is a less commonly used term. The basso oboe is larger and has a lower range than the traditional oboe, and is often used in classical compositions to add depth and richness to the sound of the orchestra. While corno di bassetto is the original name for this instrument, the use of synonyms can help to make it more accessible to non-Italian speakers.