concert
noun
a public musical performance in which a number of singers or instrumentalists, or both, participate.
Used to describe an action that began in the past, has continued continuously, and is still in progress.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Which of the gods again, O deceitful one, has been concerting measures with thee?
From The Iliad of Homer (1873) by Buckley, Theodore Alois