›( alsospiral up/upward(s))if costs, prices, etc. spiral, they increase quickly: Costs spiral, and the patient is subjected to tests they don't need.Inflation began to spiral upward.spiral (from sth) to sthThe country's foreigndebt spiralled from $840 million to $2.6 billion.
According to sociologists (=people who study the relationships between people living in groups), we are good at lying. As a species, we have developed a remarkable ability to deceive each other (= persuade each other that something false is true). Being able to say things that are not true can help with