In folk belief and practice, the "aos sí" are often appeased with offerings, and care is taken to avoid angering or insulting them. Often they are not named directly, but rather spoken of as "The Good Neighbors", "The Fair Folk", or simply "The Folk". The most common names for them, "aos sí", "aes sídhe", "daoine sídhe" (singular "duine sídhe") and "daoine sìth" mean, literally, "people of the mounds" (referring to the "sídhe"). The "aos sí" are generally described as stunningly beautiful, though they can also be terrible and hideous.