Māori or Te Reo Māori, commonly shortened to Te Reo (literally the language) is one of three official languages of New Zealand, the others being English and New Zealand Sign Language. Most government departments and agencies now have bilingual names, for example, the Department of Internal Affairs is known as Te Tari Taiwhenua, and bodies such as local government offices and public libraries also have bilingual signs. New Zealand Post recognises Māori place names in postal addresses.