The Free On-line Dictionary of Computing (19 January 2023):

TUI

   

   1. Textual User Interface.

   2. Terminal User Interface.  Alternative name for Textual
   User Interface.

   3.  Telephony User Interface.

   4. Tangible User Interface.

   5. Tactile User Interface.

   6. Telescope User Interface.

   (2003-10-17)