ব্যাখ্যা
• The word that doesn't remain the same in the plural form is: Army.
• Army (Noun)
- English meaning: a large organized body of armed personnel trained for war especially on land.
- Bangla meaning: সংগঠিত দল; সেনাবাহিনী।
- Army -এর plural form: Armies.
- কতগুলো word আছে যাদের singular এবং plural form একই থাকে।
- যেমন:
• Deer - There is one deer, and there are many deer.
• Sheep - There is one sheep, and there are many sheep.
• Swine - There is one swine, and there are many swine.
• Corps - Marine Corps, Several corps from different countries participated in the exercise.
• Aircraft - There is one aircraft, and there are many aircraft.
• Spacecraft - There is one spacecraft, and there are many spacecraft.
Source:
1. Accessible Dictionary by Bangla Academy.
2. Merriam-Webster Dictionary.