Oneword Substitutes

1. A person who sacrifices his life for a cause.

2. A period of thousand years.

3. One who hates knowledge and learning.

4. A person who hates marriage.

5. Madness caused by the attention being occupied by one idea or subject.

6. A person who drives an elephant.

7. Official misconduct.

Answers:

1. Martyr

2. Millennium

3. Misologist

4. Misogamist

5. Monomania

6. Mahout

7. Malfeasance