Half: used to indicate a particular size of paper. See II.n. A particular size of paper.n. A holder of one of certain scholarships in Magdalen College, Oxford. Also spelled demi.n. A Scotch gold coin issued by James I. in 1433, and worth at that time 3s. 4d. English. Obverse type, arms in a lozenge; reverse, cross in tressure.n. A short close vest.n. The gold half-lion of 20 grains of Robert II. of Scotland, the lion itself weighing 40, or more usually 38, grains.