How do you pronounce tau?

Excuse me, could you please clarify the pronunciation of the Greek letter "tau"? I'm having a bit of trouble getting it right. I've heard it pronounced in a few different ways, and I'm wondering if there's a standard or preferred way to say it in the field of cryptocurrency and finance, particularly when referring to technical terms or concepts that involve this letter. Could you guide me on the correct pronunciation, so I can ensure I'm communicating accurately?