Definition of jamb in English:

jamb

noun

  • A side post or surface of a doorway, window, or fireplace:

    ‘he leaned against the door jamb’
    • ‘Extend window and door jambs as needed so they will be flush with the face of the new paneling.’
    • ‘In addition to that, door seal kits include high-grade neoprene door jambs for the vertical sides and the top of the door.’
    • ‘The widths of original door and window jambs were calculated to fit the existing wall, and the addition of the new paneling makes the wall thicker by 1/4 ‘or more.’’
    • ‘Salvaged doors and windows housed in new jambs set up contrasts between new and old.’
    • ‘If the door still does not seal tightly to all sides of the jamb you either installed the weatherstripping badly or the door is bent and in need of replacement.’
    post, doorpost, upright, frame, pillar
    View synonyms

Origin

Middle English: from Old French jambe leg, vertical support, based on Greek kampē joint.

Pronunciation

jamb

/dʒam/