There are several synonyms for the term "low-level language" which refers to a computer programming language that is difficult for humans to read and comprehend, but it is easier for machines to understand. Some of the synonymous terms include machine language, assembly language, and binary language. Machine language is the most basic type of low-level programming language, which is represented by 1s and 0s. Assembly language, on the other hand, is a step higher than machine language as it uses short-form commands rather than binary instructions. Binary language is a term used to describe the most fundamental level of low-level programming language, where every command is represented by a series of 1s and 0s.