1. Language-Linguistics(Abstract Noun) study of how a language is constructed with special reference to its syntax and morphology

English: grammar,
Assamese: ব্যাকৰণ,
Bodo: रावखान्थि सास्त्र,
Mising: gomlam,
Dimasa: grao-gonthai,
Rabha: খুবাতায়চাক,
Deori: চ্চুগেৰে

Related Idea:

a. Abstract Noun: linguistics, ভাষাতত্ব, ভাষাবিজ্ঞান, राव बिगियान, राव सोमोनदै...

2. (Material Noun-Neuter) a book containing the grammatical rules of a language

English: grammar,
Assamese: ব্যাকৰণ, ব্যাকৰণ শাস্ত্ৰ