No. In Jain usage, akshar gnan generally means knowledge of letters, script, and reading/writing — basically literacy.

It does not mean knowledge of all languages.

Simple distinction:

• Akshar = letter, syllable, written character
• Gnan = knowledge

So akshar gnan = knowledge of letters / written words, not universal language knowledge.

If you want, I can also explain how akshar gnan is understood in Jain scriptures and education.