"koha : (New Zealand) A Māori tradition of reciprocal giving of gifts. (New Zealand, by extension) A..."

“koha : (New Zealand) A Māori tradition of reciprocal giving of gifts.
(New Zealand, by extension) A voluntary donation given for a service that has been provided.
Today is Waitangi Day, the national day of New Zealand.”

- https://en.wiktionary.org/wiki/koha#English

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