The phrasal verb "crack open" tends to be used more in informal settings rather than formal ones. It is often employed in everyday conversation to describe the act of opening something quickly or forcefully, particularly objects with a hard or sealed exterior, such as "crack open a bottle" or "crack open an egg." The expression can also be metaphorically extended to mean gaining insight or solving a complex problem, as in "crack open the case," further showcasing its versatility. "Crack open" generally carries a sense of breaking into something, whether literal or figurative, with minimal effort or an abrupt motion. Its usage is prevalent in contexts that favor a casual or colloquial tone, making it less common in formal or academic writings.
B1
Intermediate
1. To open something forcefully or quickly, often with a crack or burst sound.
He cracked open the book to begin his study session.
The team cracked open a bottle of champagne to celebrate their victory.
2. To open something to allow air or light to enter slightly.
She cracked open the window to let in some fresh air.
He cracked open the door to see if anyone was inside.