source language

1. 1.

   a language that is to be translated into another language

   Broaderlanguage

   Narrowerapplication-oriented languagecommand language

Questions about source language

What does source language mean?

source language means "a language that is to be translated into another language".

Is source language a common word?

source language is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.