Meaning of the word 'Plaintiff' is -

• Meaning of the word 'Plaintiff' is - The person who brings a case to court.

• Plaintiff (noun) 
English meaning: A person who brings a case against another in a court of law.
Bangla Meaning: বাদী; ফরিয়াদি।

Example: The plaintiff commenced an action for damages.
Bangla Meaning: বাদী ক্ষতিপূরণের জন্য একটি মামলা শুরু করেছিলেন।

Source:
1. Oxford Learner's Dictionary.
2. Accessibe Dictionary by Bangla Academy.