What is the one word substitution for 'a government by the wealthy'?

The term 'government by the wealthy' can be substituted with 'Plutocracy'.

What is the one word substitution for 'a person who believes in or advocates for the abolition of war'?

The term for 'a person who believes in or advocates for the abolition of war' is 'Pacifist'.

What is the one word substitution for 'a person who is excessively concerned with minor details and rules'?

Such a person can be referred to as a 'Pedant'.

What is the one word substitution for 'a person who travels from place to place, especially on foot'?

This can be substituted with 'Wayfarer'.

What is the one word substitution for 'a person who is unable to speak'?

The term for 'a person who is unable to speak' is 'Mute'.

What is the one word substitution for 'a person who is fond of the sea'?

Such a person is referred to as a 'Nautical'.

What is the one word substitution for 'a person who hates women'?

The term for 'a person who hates women' is 'Misogynist'.

What is the one word substitution for 'the study of human behavior and societies'?

This can be substituted with 'Sociology'.

What is the one word substitution for 'a person who studies insects'?

The term for 'a person who studies insects' is 'Entomologist'.

What is the one word substitution for 'a person who is very skilled at playing a musical instrument'?

Such a person can be referred to as a 'Virtuoso'.

What is the one word substitution for 'a person who has a deep love for knowledge'?

This can be substituted with 'Philosopher'.