Break cover Definition 1 of 2Pro Tip 1/3Use in Tension Use 'break cover' when describing a sudden, often risky move from safety. The deer decided to break cover, darting across the field. Pro Tip 2/3Physical Movement Emphasizes actual movement from a place of concealment or protection. Upon hearing the whistle, the spy had to break cover. Pro Tip 3/3Metaphor for Risk Can be used metaphorically to convey taking a chance or exposing oneself. In the debate, she finally broke cover and shared her opinion.