Definition of sennit in US English:

sennit

noun

  • 1Braided straw, hemp, or similar fibrous material used in making hats.

    • ‘Untwist the strips as necessary to flatten out the sennit.’
    • ‘The French 17-strand sennit produces a lovely ‘French twist’.’
    1. 1.1Nautical Braided cordage in flat, round, or square form, made from three to nine cords and used for making mats, lashings, etc.

Origin

Mid 18th century: variant of sinnet.

Pronunciation

sennit

/ˈsɛnət//ˈsenət/