XL noun 2adjective 1forms 1 noun2 •A designation for a trim level within a model of trucks; it denotes midrange features. •Initialism of extra large (the manufactured size or an item of that size).Size – L, and because of this it’s a bit small when you’re used to wearing XLs. The sleeves are particularly lilliputian — 1996 adjective1 •Initialism of extra large (of the manufactured size). formsXLs
