Ruby/ˈruːbi/ Definition 1 of 5Pro Tip 1/2Luxury Item Rubies denote luxury and high status due to their rarity and beauty. She flaunted a ruby the size of a quail's egg at the gala. Pro Tip 2/2Symbol of Love 'Ruby' can symbolize deep passion and romantic commitment, making it popular for gifts. He confessed his eternal love with a ruby pendant.