ETA

1. Short for Electronic Technicians Association International (also abbreviated as ETA-I), ETA is an non-profit association that was founded in 1978 and assists in the certification of electronics equipment service and support. Some examples of the ETA-I certifications are the CST, CNCT and CNST.
   
   The official ETA International website is found at: http://www.eta-i.org/
   
2. Short for Estimated Time of Arrival, ETA is an estimate to when something is expected to be done, an estimate to how long something is going to be not working, or the time someone or something will be arriving.

Also see: Certification definitions, Chat definitions, CompTIA