2. (particle) for, because, on account of - will often express the connection of that phrase or sentence to the previous one, as its cause, i.e. to indicate the reason for something.
Ka noho ia ki raro, ka pōuri hoki ia ki a ia e kataina ana e ōna hoa. / He sat down because he was upset that he was being laughed at by his companions.
3. (particle) Word giving emphasis.
(Te Kākano Textbook (Ed. 2): 58; Te Pihinga Textbook (Ed. 2): 22;)
Tō tere hoki! / How quick you were!
Nō hea hoki tēnā whakaaro? / Where the heck did you get that idea from?
See also tō ... hoki
