As a Noun: 1. Sounds that are put together in a pattern and performed by people who are singing or playing instruments. English = music. 2. A large group of musicians who play a variety of different instruments together. English = orchestra. 3. A person who stands in front of an orchestra, band or choir and direct its performance by waving their hands. English = conductor. 4. A performance of music given by musicians. English = concert. As a Verb or Adjective: 1. To stand in front of an orchestra, band or choir and direct its performance by waving your hands. English = conduct.