The word with the correct spelling is Graffiti. It can function as both a noun and a verb.

• English meaning: Usually unauthorized writing or drawing on a public surface.

• Bangla meaning: দেওয়ালচিত্র; দেওয়াল লিখন।

• Example sentence: The walls of the old building are covered with graffiti.

  • Bangla meaning: পুরাতন ভবনের দেয়াল গ্রাফিতি দিয়ে ঢাকা।

Vengeance is the correct spelling.

Vengeance

• Bangla Meaning: প্রতিশোধ; প্রতিহিংসা।

• English Meaning: punishment inflicted in retaliation for an injury or offense : retribution.

Example sentence:

• Voters are ready to wreak vengeance on all politicians.

Xerox (noun)

English Meaning: A brand name for a copy of a document or other piece of paper with writing or printing on it, made by a machine that uses a photographic process; also refers to the machine or process itself.

Bangla Meaning: আলোকচিত্রের সাহায্যে মুদ্রণ পদ্ধতিবিশেষ।

Example Sentences:

I can give you a Xerox of the letter if you like.

Could you send me a Xerox of the contract?

Source: Cambridge Dictionary.