[leave] the door open for {sth}
1
to make sure that there is still a possibility or chance for something to be done or achieved at a later time
The origin of the idiom "leave the door open for something" is uncertain, but it likely originated from the literal meaning of the phrase. Leaving a door open allows for the possibility of something or someone to enter or exit, and the idiom uses this literal meaning to suggest the idea of keeping a possibility open for something in a figurative sense. It is used to describe intentionally keeping a possibility or opportunity available for something in the future.
- Even though he's not sure if he wants to pursue a career in acting, Tom is leaving the door open for the possibility by attending local theater auditions.
- When negotiating the contract, make sure to leave the door open for future amendments and changes.