Wiktionary
door frame
alt. The frame into which a door is fitted. n. The frame into which a door is fitted.
Usage examples of "door frame".
As he pushed it open and stepped inside, he noted that the door frame was splintered and that a ruined security chain hung from its mounting.
He came below deck and leaned against the door frame, watching as she took all the articles of clothing out of the bag and placed them on the bed, dividing them into his and hers stacks.