Definition of ogham in US English:


(also ogam)


  • 1An ancient British and Irish alphabet, consisting of twenty characters formed by parallel strokes on either side of or across a continuous line.

    • ‘The combination of a rockcut ‘basin’, two separate carved footprints, the incised outline of a boar or pig, and an inscription in the Irish linear script, known as ogham, cannot be paralleled anywhere in Britain or Ireland.’
    • ‘One is inscribed in Latin and also in ogham.’
    • ‘He initiated the modern study of ogam with an essay on the Mount Callan Stone in 1785.’
    1. 1.1 An inscription in or character from the ogham alphabet.


Early 18th century: from Irish ogam, connected with Ogma, the name of its mythical inventor.