During the 19th century, New Zealand English gained many loanwords from the Māori language. The use of Māori words in New Zealand English has increased since the 1990s, and English-language publications increasingly using macrons to indicate long vowels. Māori words are usually not italicised in New Zealand English, and most publications follow the Māori-language convention of the same word for singular and plural (one kākāpō, three kākāpō).