Explain euphemism and use appropriate examples to illustrate the explanation.

A euphemism is a mild or indirect word or expression used in place of a more harsh or blunt one to soften the impact of a potentially unpleasant or offensive statement. Euphemisms are often used to discuss sensitive topics or to avoid causing offense or discomfort.

Examples of euphemisms include:

1. "Passed away" instead of "died" - This is a common euphemism used to discuss death in a more gentle and respectful way.

2. "Correctional facility" instead of "prison" - This euphemism is used to refer to a place where individuals are incarcerated without using the more negative connotations associated with the word "prison."

3. "Visually impaired" instead of "blind" - This euphemism is used to describe someone who has a vision impairment in a more neutral and less stigmatizing way.

4. "Pre-owned" instead of "used" - This euphemism is often used in the context of selling second-hand items to make them sound more appealing.

5. "Big-boned" instead of "overweight" - This euphemism is used to describe someone who is overweight in a less direct and potentially less hurtful way.