noun
object language; target language
Technical term in computing and linguistics. In computing, it refers to the language into which a program is compiled or translated. In linguistics, it can mean the language being studied or the language into which translation is done.
コンパイラはソースコードを目的言語に変換する。
The compiler translates the source code into the object language.
In translation, accurate conversion from the source language to the target language is required.