Flee/fliː/ Definition 1 of 3Pro Tip 1/3Imminent Danger Use 'flee' when the danger is immediate and could harm you. The residents had to flee due to the approaching wildfire. Pro Tip 2/3Intense Fear Choose 'flee' to describe actions caused by strong fear or panic. She fled the house at the sound of the terrifying screams. Pro Tip 3/3Unexpected Departure Illustrates leaving without warning or notice, often under urgent circumstances. He fled the meeting when he learned of his child's accident.