What does "doorpost" mean?

Either of the upright posts on either side of a door, which together support a lintel; doorjamb.

What is a synonym for "doorpost"?

Common synonyms include: archway, back door, baluster, balustrade, banister, barway.

noun

noun ·Rare ·Advanced level

Noun

1
Either of the upright posts on either side of a door, which together support a lintel; doorjamb.
"In every house a he-lamb was to be slain, and its blood to be sprinkled on the doorposts of the house."
2
a jamb for a door wordnet

"In every house a he-lamb was to be slain, and its blood to be sprinkled on the doorposts of the house."

From door + post.