What are ALMs, LEs and ALUTs?
http://quartushelp.altera.com/10.0/mergedProjects/reference/glossary/def_alm.htm


  The Adaptive Logic Module (ALM) is the basic building block of
  supported device families and is designed to maximize performance and
  resource usage. Each ALM, composed of two Adaptive Look-Up Tables
  (ALUT) ...


LE has meant "logic element" for many years, although what defines a logic element is not entirely static, in Altera-land is usually means a 4-input look-up table (sometimes called a 4-LUT) + a d-type flipflop (DFF).