n. & adj.
n. 1 one more than fourteen, or five more than ten; the product of three units and five units. 2 a symbol for this (15, xv, XV). 3 a size etc. denoted by fifteen. 4 a team of fifteen players, esp. in Rugby football. 5 (the Fifteen) hist. the Jacobite rebellion of 1715. 6 (15) Brit. (of films) classified as suitable for persons of 15 years and over.
adj. that amount to fifteen. fifteenth adj. & n.
[ OE fiftene (as FIVE, -TEEN) ]