What is an ell?

An ELL student stands for English Language Learner.

An ell is an old unit of measurement. An English ell was a littleover 45", supposedly based on the distance from shoulder to wrist. (Mine isn't that long. Perhaps it was wrist to wrist across the shoulders?)

and is also a short way of saying Danielle or Ellen or ellie or ellenor or criss

Ell is also away of spelling Elle but wrongly

and a elle also is a mesure of pie in New England