Ell

n. former unit of measure (used for measuring cloth)

ELL is an acronym for:East London LineEnglish Language Learners
See more at Wikipedia.org...

An ell (from Proto-Indo-European *el- "elbow, forearm), when used as an English unit of length, is usually 45 inches, i.e. 1.143 m (for the international inch). It was mainly used in the tailoring business but is now obsolete. It was derived from the length of the arm from the shoulder (or the elbow) to the wrist, although the exact length was never defined in English law.
See more at Wikipedia.org...

L left; leucine ; liter ; lung ; lumbar vertebrae. l former symbol for liter. l / l / length. L abbr. 1. left 2. limes 3. or l liter 1. [more]Ell - Community and Resources

Noun
1. an extension at the end and at right angles to the main building
(hypernym) annex, annexe, extension, wing

(n.)
See L.
  

(n.)
A measure for cloth; -- now rarely used. It is of different lengths in different countries; the English ell being 45 inches, the Dutch or Flemish ell 27, the Scotch about 37.