The word 'euphemism' means-

Correct answer: Inoffensive expression.

• Euphemism (Countable noun & Uncountable noun)
- English Meaning: the substitution of an agreeable or inoffensive word or expression for one that is harsh, indelicate, or otherwise unpleasant or taboo.
- Bangla Meaning: সুভাষণ; সত্যিকার শব্দের পরিবর্তে অন্য কোনো শব্দের ব্যবহার।

• Euphemism is a figure of speech that stands for a pleasant way of referring to something unpleasant.
- It refers to a word or phrase used to avoid saying an unpleasant or offensive word.
- A euphemism is a polite word or expression that is used to refer to things which people may find upsetting or embarrassing to talk about, for example, sex, the human body, or death.
- ইংরেজি সাহিত্যে 'Euphemism' শব্দের অর্থ সুভাষণ, কোমল প্রকাশ (inoffensive expression)।

Example:
1. 'Senior citizen' is a euphemism for 'old person'.
2. "Pass away" is a euphemism for "die ".

Source:
1. Accessible Dictionary by Bangla Academy.
2. Merriam-Webster Dictionary.