The Collaborative International Dictionary of English v.0.48:
Hin \Hin\ (h[i^]n), n. [Heb. h[imac]n.] A Hebrew measure of liquids, containing three quarts, one pint, one gill, English measure. --W. H. Ward. [1913 Webster]WordNet (r) 3.0 (2006):
hin n 1: ancient Hebrew unit of liquid measure = 1.5 gallons