eta
/ˈeɪtə/
noun
- The seventh letter of the Greek alphabet (Η, η).
- In Greek, the letter eta is pronounced like a long 'e'.
- The symbol η is used in physics to represent efficiency.
- She learned to write both the uppercase and lowercase forms of eta.
- An abbreviation for 'estimated time of arrival'.
- The flight's ETA is 3:45 PM.
- Please update your ETA so we know when to expect you.
- The app shows the delivery driver's ETA as 10 minutes.