Definition of vang in English:

vang

Pronunciation /vaNG/ /væŋ/

noun

Sailing
  • Each of two guy ropes running from the end of a gaff to opposite sides of the deck.

    ‘Especially in heavy winds, ease the vang an inch or two for the reach.’
    • ‘If the vang is on tight and the wind drops be sure to ease it to maintain good mainsail trim.’

Origin

Mid 18th century variant of obsolete fang, denoting a gripping device, from Old Norse fang ‘grasp’, of Germanic origin.