The synonym of "Facsimile" is -

• Facsimile:
Bangla Meaning: লেখা, মুদ্রণ, ছবি প্রভৃতির অবিকল প্রতিরূপ।
English Meaning:
- A copy of anything made, either so as to be deceptive or so as to give every part and detail of the original;
- an exact copy or likeness.

• Synonym of "Facsimile":
- replica,
- twin,
- picture,
- clone,
- portrait,
- duplicate,
- counterpart.

• The synonym of "Facsimile" is - "Duplicate".

• 'Duplicate' শব্দের অর্থ:
- সদৃশ; অনুরূপ।
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অন্যদিকে,
Reliable - নির্ভরযোগ্য।
Spacious - স্থানবহুল।
Penalty - শাস্তি।

Source:
Merriam-Webster Dictionary, Accessible Dictionary by Bangla Academy.