Definition of jamb
1 : an upright piece or surface forming the side of an opening (as for a door, window, or fireplace)
2 : a projecting columnar part or mass
Recent Examples of jamb from the Web
On a recent visit by The Bee to the fourth-floor stockroom, a staff member pointed out corroded drawer handles, door jambs and metal outlet covers.
At 4:10 p.m. May 14, a woman, 32, called police after noticing that wood trim around a door jamb in her home was missing.
Don’t bother with a steel door or door frame; check for bolts on the upper half that might indicate the presence of a steel rod or 2-by-4-inch wood jamb.
In some homes ISIS sniper nests were intact, their bulwarks of cooking-gas canisters and upturned credenzas and on-end mattresses still crammed between door jambs.
The first come ready to install in rough openings with jamb and hinges attached; the second are sized to fit in finished openings but require drilling holes for hardware.
Meanwhile, Swartz's cross-ideological cadres were kicking out the jambs.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'jamb.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of jamb
Middle English jambe, borrowed from Anglo-French jambe, gaunbe “side post of a door or window,” literally, “leg,” going back to Late Latin gamba, camba “hock or upper leg of a horse,” borrowed from Greek kampḗ “bend, flexion of a limb,” probably going back to a European substratal base *kamp-, whence also perhaps Lithuanian kam̃pas “corner, hidden place,” Latvian kampis “curved piece of wood, kettle hook,” Gothic hamfs “maimed”
First Known Use: 14th centurySee Words from the same year
JAMB Defined for English Language Learners
Definition of jamb for English Language Learners
: a board that forms the side of a door or window
JAMB Defined for Kids
Definition of jamb for Students
: a vertical piece forming the side of an opening (as for a doorway)
Seen and Heard
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