open the door to

Also, open doors. Create an opportunity for, as in Legalizing marijuana may open the door to all kinds of abuse, or Her statement opened the door to further discussion, or Dad's connections at the hospital have opened doors for Richard's colleagues at medical school. [Late 1600s]

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.