To allow access or facilitate.
read in
To allow access to classified information.
get one's foot in the door
To initiate contact or a relationship; to gain access, especially to a…
kick at an open door
To carry out a redundant activity.
born in a barn
In a past tense: criticizing the person to whom the phrase is directed…
get the door
To open a door to help another person to pass through.
push against an open door
To do something pointless or unnecessary; to try doing something alrea…