found: Art & architecture thesaurus online, May 14, 2020(doorframes. UF doorframe; casings, door; door casings; door frames; door linings; doorway frames; frames, door; frames, doorway; linings, door. SN Assemblies built into a wall, consisting of two upright members (doorjambs) and a horizontal member (doorhead) and providing support on which to hang the door)
found: Merriam-Webster dictionary online, May 14, 2020(doorframe: the jambs and upper transverse member enclosing the sides and top of a doorway and usually supporting a door)
found: Dictionary.com, May 14, 2020(doorframe: the frame of a doorway, including two jambs and a lintel, or head)
notfound: Thesaurus for graphic materials, via WWW, May 14, 2020