As a noun:
* The orchestra's conduct was exemplary, with each musician playing in perfect harmony. (The way they acted/behaved)
* The professor's research on ethical conduct in business was widely praised. (The principles of right and wrong behavior)
* The company's financial conduct was investigated by the authorities. (Their business practices)
As a verb:
* The scientist carefully conducted the experiment to test her hypothesis. (Performed or carried out the experiment)
* The tour guide conducted us through the museum, pointing out the most important exhibits. (Led or guided us)
* The symphony orchestra conducted a stirring performance of Beethoven's Fifth Symphony. (Led the performance of the music)
Let me know if you'd like more examples or have any other questions!