to leave the door open for something
01
to make sure that there is still a possibility or chance for something to be done or achieved at a later time
![to [leave] the door open for {sth} definition and meaning](https://cdn.langeek.co/photo/40367/original/?type=jpeg "to [leave] the door open for {sth} definition and meaning")
Idiom
例
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.
