1. Language-Linguistics(Abstract Noun) letters which are not used or pronouned by themselves without being joined with others. অনুস্বাৰ, বিসৰ্গ, চন্দ্ৰবিন্দু আদি যিবোৰ আখৰ স্বতন্ত্ৰ হৈ নাথাকে বা স্বতন্ত্ৰভাৱে উচ্চাৰিত নহয়|

English: diacritic,
Assamese: অযোগবাহ

2. Language-Linguistics(Common Noun-Common &/or Masculine) a sign or symbol that is used above or below a letter to make them defferent in sound when the diacritic is used and when it`s not used.

English: diacritic,
Assamese: বিশেষক