Au

/ˈəʊ/

/ˈoʊ/

a soft yellow malleable ductile (trivalent and univalent) metallic element; occurs mainly as nuggets in rocks and alluvial deposits; does not react with most chemicals but is attacked by chlorine and aqua regia

synonyms : atomic number 79

gold

a unit of length used for distances within the solar system; equal to the mean distance between the Earth and the Sun (approximately 93 million miles or 150 million kilometers)

synonyms : Astronomical Unit

Examples

1. She loves to eat French pastries like croissants and pain au chocolat.

2. In fact, 0.03% of families in America have au pairs.

3. However, unlike live in nannies, au pairs have no guaranteed sick days or federal holidays.

4. The solar wind travels up to 150 au.

Nearby words