Definitions

1. noun

a Japanese or Chinese title or honorific used when addressing someone of superior status, age, or authority

“She bowed low, addressing him with ‘tu’ out of respect.”

2. verb

to tutor or teach, especially in a language

“I’m going to tu the language to a group of beginners.”

3. interjection

used to express surprise or excitement

“Tu! Look at that amazing view!”