cran

noun3

1. •
   An embellishment played on a chanter of a bagpipe or a tin whistle, consisting of a series of grace notes produced by rapid sequential lifting of the fingers.
2. •
   (no longer used) A measure of herrings, either imprecise or sometimes legally specified. It has oftentimes been about 37½ imperial gallons, or ~750 herrings on average (up to 1200 or even ~2500).

   • His brother caught three hundred cran when the seas were lavish, / Threw the bleeders back in the sea and went upon the parish. — 1938
3. •
   (no longer used, rare) A barrel made to hold such a measure.