A species of honeyeater, Prosthemadera novaeseelandiae, a bird which is endemic to New Zealand.

plural of tui

(computing, retronym) Initialism of text-based user interface. / (computing) Initialism of tangible user interface. / (computing) Initialism of touch user interface.

plural of TUI

A Chinese manipulative therapy that uses Taoist and martial arts principles in an effort to achieve balance.

(Canada, US) A sum of money paid for instruction (such as in a high school, boarding school, university, or college). / The training or instruction provided by a teacher or tutor.

(US, humorous) A circular object supposedly giving its owner the ability to get done everything that would have otherwise been put off to a later date "when they got around to it".

plural of tuit

(humorous) Synonym of round tuit

plural of tuition