2. (noun) four (people), quartet, doubles (tennis, etc.).
I ui ia ki tētahi o ōna hoa mehemea ia i kite i te tokowhā ka mea mai tērā, āe, i kite ia (TTT 1/8/1930:2114). / He asked one of his companions if he had seen the four people and he said that, yes, he had seen them.
3. (noun) four of a kind (cards) - a poker hand that contains all four cards of one rank and any other (unmatched) card, with higher-ranking cards defeating lower-ranking ones.