denoting the next after K in a set of items, categories, etc..
2 (L) a shape like that of a capital L: [in combination]:an L-shaped building
(usually ell)North American an extension of a building or room that is at right angles to the main part:1820 brick Federal Colonial featuring clapboard ell
(usually ell)North American a bend or joint for connecting two pipes at right angles.
3the Roman numeral for 50.
[originally a symbol identified with the letter L, because of coincidence of form. In ancient Roman notation, L with a stroke above denoted 50,000]
