This word means that the person is willing to murder/hurt someone in their family. And this word means like you kinda destroy peoples property. So in this pic it is showing that the father said he had to murder his wife so they can have more space in the house and how it saves money with less people.
The word means the study of the fundamental nature of knowledge, reality, and existence, especially when considered as an academic discipline a particular system of philosophical thought.
The yellow highlighted part means that is explaining what is happening in the pic. And the blue highlighted means that it is explaining the word.