Fret/fret/ Definition 1 of 4Pro Tip 1/3Emotional Tone Used to express discomfort or worry, often about minor issues. She always frets over the smallest details before a party. Pro Tip 2/3Casual Expression Common in everyday conversation to express personal concern or stress. I can't help but fret about tomorrow's interview. Pro Tip 3/3Negative Context Frequently used in negative situations or to discourage excessive worrying. Don't fret, we'll figure out a solution.