Definition: "Not old, recent or current."

Definition: "Very old, from the past."

Definition: "The ability to do something even when it is difficult or scary."

Definition: "To take someone’s attention away from what they are doing."

Definition: "A person’s emotional state."

Definition: "Firm, stable, and not likely to change suddenly."

Definition: "The distance or variety between two limits."

Definition: "To direct or manage something."

Definition: "A person who studies how people think, learn, and remember."

Definition: "The distance or variety between two limits."