1. (Abstract Noun) The act of setting upon in a forceful, violent, hostile, or aggressive way, with or without a weapon. অপকাৰ কৰিবৰ মনেৰে খেদি ধৰা; অস্ত্ৰ লৈ অথবা বিনা অস্ত্ৰে ৷

English: attack, invasion,
Assamese: আক্ৰমণ, হামলা,
Bodo: गाग्लोब, बुग्रा लावथि,
Mising: moadung, moto,
Garo: chadrapani, dakrikna chaa,
Karbi: Tingkheng,
Nagamese: akromon, attack,
Dimasa: baipabah, Dainlaiba

Different POS:

a. Common Noun-Common &/or Masculine: accoster, assailant, assaulter, attacker, অপঘাতক...
b. Verb-Trans.: assail, attack, invade, আক্ৰম, আক্ৰমণ কৰ্...

Related Idea:

c. Abstract Noun: counter attack, প্ৰত্যাক্ৰমণ...