The word 'even' can be used as -

• Even শব্দটি pronoun ব্যাতীত Noun, adjective, adverb এবং verb হিসেবে ব্যবহৃত হতে পারে।
- তাই প্রশ্ন অনুযায়ী সঠিক উত্তর হবে ঘ) All of these.

• Even (as an adjective)
English Meaning: being without break, indentation, or irregularity.
Bangla Meaning: নিয়মিত; অবিচলিত; দৃঢ়মনোভাবসম্পন্ন/সমতল; মসৃণ।
Example:
- Prepare the site, then lay an even bed of mortar.
- The chances are even.

• Even (as an adverb)
English Meaning: used as an intensive to stress an extreme or highly unlikely condition or instance.
Bangla Meaning: এমনকি/যদিও; তথাপি।
Example:
- Does he even suspect the danger?
- They have never even heard of the United States

• Even (as a verb)
English Meaning: to make even.
Bangla Meaning: সমান করা। 
Example:
- He cut the hair again to even up the ends.
- Let us even the ground.

• Even (as a noun)
English Meaning: evening.
Bangla Meaning: সাঁঝ; সন্ধ্যা।
Example:
- Bring it to my house this even.
- Let's go for a long drive tomorrow even.

Source:
1. Merriam-webster Dictionary.
2. Oxford Learner's Dictionary.
3. Accessible Dictionary by Bangla Academy.