V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

HLL
       High Level Language


The Jargon File (version 4.4.7, 29 Dec 2003):

HLL
 /H?L?L/, n.

    [High-Level Language (as opposed to assembler)] Found primarily in email
    and news rather than speech. Rarely, the variants ?VHLL? and ?MLL? are
    found. VHLL stands for ?Very-High-Level Language? and is used to describe a
    bondage-and-discipline language that the speaker happens to like; Prolog
    and Backus's FP are often called VHLLs. ?MLL? stands for ?Medium-Level
    Language? and is sometimes used half-jokingly to describe C, alluding to
    its ?structured-assembler? image. See also languages of choice.


The Free On-line Dictionary of Computing (30 December 2018):

high-level language
HLL

   (HLL) A programming language which provides some level of
   abstraction above assembly language.  These normally use
   statements consisting of English-like keywords such as "FOR",
   "PRINT" or "GOTO", where each statement corresponds to several
   machine language instructions.  It is much easier to program
   in a high-level language than in assembly language though
   the efficiency of execution depends on how good the compiler
   or interpreter is at optimising the program.

   Rarely, the variants "VHLL" and "MLL" are found.

   See also languages of choice, generation.

   (1994-12-07)