Definition of jamb in English:


Line breaks: jamb
Pronunciation: /dʒam


  • A side post or surface of a doorway, window, or fireplace: he leaned against the door jamb
    More example sentences
    • Salvaged doors and windows housed in new jambs set up contrasts between new and old.
    • 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.’
    • Extend window and door jambs as needed so they will be flush with the face of the new paneling.
    post, doorpost, upright, frame, pillar


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

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a slit made by cutting with a saw