"Back off" is a phrasal verb predominantly used in informal contexts, though it may occasionally appear in semiformal situations. It is commonly employed to instruct or advise someone to retract or withdraw from a position, action, or argument, particularly when engaged in a conflict or disagreement. The phrase can be used in both literal and figurative contexts, such as telling someone to physically move away or discouraging them from interfering in a particular situation. In verbal exchanges, it frequently serves as a directive to diminish the level of confrontation or to deescalate tensions. The conversational tone of this phrasal verb makes it more suitable for casual interactions, where expressions of boundary-setting or requests to step aside are necessary.
B1
PreIntermediate
1. To move away or retreat, often to give space or avoid confrontation.
When she got too close, he told her to back off and give him some space.
The cat backed off when the dog started barking loudly.
2. To reduce pressure or intensity in a situation or towards a person.
The manager decided to back off his team, realizing they were already under enough stress.
You should back off a bit and let her handle the task her way.